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Metal Core PCB Material: Types, Properties & Applications

July 25th, 2025

When it comes to managing heat in high-power electronic devices, Metal Core PCBs (MCPCBs) are the go-to solution. These boards use a metal base—typically aluminum or copper—to efficiently dissipate heat for LEDs, power modules, and automotive systems. However, the effectiveness of an MCPCB depends heavily on the material chosen for its core and dielectric layers.

At Best Technology, we specialize in custom MCPCB fabrication using materials from leading global brands like Laird, Bergquist, and Ventec. Whether you need aluminum-based MCPCBs for LED lighting or copper-core boards for power electronics, we offer full support from material selection to prototyping and mass production. In this blog, we will share some information about metal core PCB materials, help you to understand MCPCB from the inside to out.

Metal Core PCB Material: Types, Properties & Applications

What Is Metal Core PCB?

A metal core PCB (MCPCB) is a printed circuit board that uses a metal base instead of traditional fiberglass (FR4). This metal base acts as a heat spreader, drawing heat away from components that generate significant thermal energy during operation.

In a typical MCPCB, the structure includes three key layers:

  • Copper Circuit Layer – for electrical connections.
  • Dielectric Layer – an insulating layer that separates the copper from the metal core, allowing heat transfer but preventing electrical conduction.
  • Metal Core (Base Layer) – typically aluminum, copper, or stainless steel, used to conduct heat away from the board.
Metal Core PCB structure

These PCBs are engineered to handle thermal management more efficiently than standard PCBs. As electronic devices become more compact and powerful, effective heat dissipation becomes more important, and MCPCBs offer a practical solution.

Common Metal Core PCB Materials

There are several options when it comes to metal core PCB material, each with its own unique benefits. The choice depends on factors like thermal requirements, mechanical strength, weight, and budget.

1. Aluminum Core

Aluminum is the most commonly used metal core material in MCPCBs. It is lightweight, cost-effective, and has good thermal conductivity—typically around 205 W/m·K. Aluminum cores are ideal for LED lighting, consumer electronics, and automotive circuits where heat must be dissipated efficiently, but extreme thermal loads are not present. The commonly used aluminum core PCB in Best Technology is 5052, 6061, 3003, here is the datasheet of them:

Property6061 Aluminum5052 Aluminum3003 Aluminum
Material TypeAl-Mg-SiAl-MgAl-Mn
Tensile Strength (MPa)290 – 350190 – 260130 – 200
Yield Strength (MPa)240160 – 200115 – 150
Elongation at Break (%)10 – 1712 – 2015 – 20
Thermal Conductivity (W/m·K)167138159
Density (g/cmÂł)2.702.682.73
Melting Point (°C)582 – 652607 – 650643 – 657

2. Copper Core

Copper is used where superior heat dissipation is needed. It has excellent thermal conductivity—around 385 W/m·K—and is suitable for high-power applications such as power supplies, industrial equipment, and RF systems. While it offers the best performance in terms of heat transfer, it is also heavier and more expensive than aluminum.

3. Stainless Steel Core

Stainless steel is rarely used, but it can be found in certain niche applications where corrosion resistance and mechanical strength are more important than thermal performance. Its thermal conductivity is much lower, around 16 W/m·K, making it suitable only for specific use cases.

Metal Core PCB Material Manufacturers

When choosing a metal core PCB manufacturer, it’s important to work with companies that supply high-quality materials and have a track record of consistency and reliability. Below are some of the leading manufacturers of metal core PCB materials that we cooperating:

  • Bergquist (Henkel)
  • Ventec
  • Polytronics (Taiwan)
  • Boyu (China)
  • Laird Technologies
  • Totking (China)
  • Dupont Clamcool
  • XianYang Bode electronic

Why Thermal Conductivity Is Important in MCPCB?

The thermal conductivity of a material refers to the amount of heat it can transfer under stable conditions. Specifically, for a 1-meter-thick material, if the temperature difference between two surfaces is 1°C, and heat transfer occurs through 1 square meter within 1 hour, the quantity of heat transferred is expressed in W/m·K (watts per meter-kelvin). For practical use, K (kelvin) can often be replaced by °C.

The thermal conductivity value depends on the material’s composition, density, moisture content, and temperature. Materials with lower density or non-crystalline structures tend to have lower thermal conductivity, while materials with higher density and metallic bonding structures transfer heat more efficiently.

Generally, materials with low thermal conductivity are referred to as thermal insulators, and those with a conductivity below 0.05 W/m·K are called high-efficiency insulation materials. In contrast, metals typically exhibit high thermal conductivity, which makes them ideal for use in metal core PCBs.

Thermal Conductivity of Common Metals Materials

MetalThermal Conductivity (W/m·K)
Silver429
Copper401
Gold317
Aluminum237
Iron80
Lead67
Zinc34.8

As seen in the table above, silver has the highest thermal conductivity, followed by copper and gold. However, due to cost and practicality, copper and aluminum are the most commonly used metals in MCPCBs. Aluminum strikes a balance between cost, weight, and thermal performance, while copper is chosen for extreme thermal demands.

1W vs 2W vs 3W Thermal Conductivity Differences

When evaluating MCPCB materials, it’s essential to consider not only the core metal but also the thermal conductivity of the dielectric layer. This layer sits between the copper circuitry and the metal base. In the metal core pcb manufacturing, the commonly used dielectric layers are 1W, 2W and 3W.

  • 1W/m·K: Basic dielectric material, suitable for low-power circuits and LEDs with minimal heat output.
  • 2W/m·K: Offers moderate thermal performance, ideal for mid-power LEDs and general electronics.
  • 3W/m·K or higher: Designed for high-power LEDs or circuits that generate significant heat, ensuring efficient transfer to the metal core.

Choosing a higher thermal conductivity dielectric can greatly reduce thermal resistance, leading to better overall cooling performance. But not the higher the better, it should depends on your specific demands.

Aluminum PCB vs Copper Core PCB

When comparing aluminum PCBs and copper core PCBs, the main differences come down to thermal performance, cost, and application needs. Both are types of metal core PCBs (MCPCBs), but they serve different purposes depending on how much heat your circuit generates and how much budget you have.

Aluminum PCB is the most commonly used metal core because it offers a good balance of performance, weight, and affordability. It provides moderate thermal conductivity (around 237 W/m·K) and is suitable for many applications, especially LED lighting, consumer electronics, and automotive circuits where heat is present but manageable. Aluminum is also lightweight, making it easier to handle and mount, especially in devices where weight matters.

Copper core PCB, on the other hand, offers superior thermal conductivity (around 401 W/m·K if used directly thermal path technology), nearly double that of aluminum. This allows it to handle more heat, which is crucial in high-power electronics, RF systems, and industrial power converters. However, copper is heavier and more expensive, so it’s typically used only when the highest level of heat dissipation is required.

Aluminum PCB
Aluminum PCB
Copper Core PCB
Copper Core PCB

Can I Use Aluminum PCB in High Power LED Lighting?

Yes, aluminum PCBs are widely used in high-power LED lighting, especially when paired with high thermal conductivity dielectric materials. These boards effectively dissipate heat away from LEDs, preventing overheating and maintaining light output stability.

However, the design must ensure:

  • Adequate heat spreading area
  • Proper thickness of aluminum core (typically 1.0mm to 1.6mm)
  • High-quality dielectric layer with 2W or 3W thermal conductivity

In cases where LEDs generate extreme heat, consider using copper MCPCBs or combining the aluminum core with external heat sinks for better performance.

How to Choose the Right MCPCB Material for LED Projects?

Selecting the correct metal core PCB material for your LED project involves analyzing the following:

  • Thermal Output of LEDs

Higher wattage LEDs generate more heat. For low-power LEDs, aluminum with 1W/m·K dielectric is sufficient. For high-power LEDs, choose aluminum or copper with 2W–3W dielectric.

  • Mechanical Requirements

If the PCB must endure vibration or mechanical stress (e.g., automotive lighting), choose thicker copper for added durability.

  • Budget Considerations

Aluminum offers a cost-effective balance between performance and price. Copper is more expensive and should be reserved for projects where thermal performance cannot be compromised.

  • Weight Constraints

In portable or ceiling-mounted LED systems, lightweight aluminum helps reduce the overall weight of the fixture.

Metal Core PCB Applications

  • LED Lighting: Used in street lights, automotive lights, grow lights, and flood lights to ensure LEDs stay cool.
  • Power Electronics: Found in motor controllers, inverters, and converters to handle large currents and heat.
  • Automotive: Used in ECUs, headlights, and battery systems for reliable performance in harsh environments.
  • Telecommunications: Applied in RF modules, power amplifiers, and antenna systems.
  • Consumer Devices: Used in high-performance audio systems and power adapters.

Best Technology – Your Online Partner in MCPCB Manufacturing

At Best Technology, we specialize in the design and production of metal core PCBs for various industries. Whether you need aluminum or copper-based boards, we deliver customized thermal solutions to meet your specific project needs. By choosing Best Technology, you can enjoy:

  • 99% on-time delivery
  • Highest quality that conforms to IATF16949
  • Factory prices with no MOQ
  • High mixed varieties: aluminum pcb, copper PCB, directly thermal path PCB, ims pcb
  • Multiply surface finish: OSP, HASL, ENIG, ENEPIG
  • Turnkey PCB & PCBA assembly
  • Flexible Production: From prototypes to high-volume manufacturing
  • Free DFM & DFA checks
  • 24/7 online sales

FAQs

Q1: What thickness is standard for aluminum MCPCBs?

Typical thicknesses range from 1.0mm to 1.6mm, depending on mechanical strength and thermal needs.

Q2: Is copper MCPCB worth the extra cost?

Yes, in high-power applications where superior thermal performance is necessary, copper is a valuable investment.

Q3: Can I request a custom thermal analysis?

Absolutely. Best Technology provides thermal analysis and simulation support to ensure the right material choice.

Q4: Are there standard sizes for MCPCB panels?

Yes, but we also offer custom sizes based on your design files and project needs.

Q5: How can I get a quote for metal core PCBs?

Send your Gerber files, project details, and thermal requirements to Best Technology. Our team will respond within 12 hours.

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MCPCB Fabrication Factories, ‌Direct from Factory‌

July 25th, 2025

How to find a MCPCB fabrication factory?‌ This guide explains metal core PCB manufacturing, its benefits, processes, and how to select reliable suppliers.

Are you worried about these issues?

  • How long can your product run stably at high temperatures?
  • Do urgent orders always put you in a passive position?
  • How to balance cost and price?

Best Technology Can Provide:

  • Customized thermal management solution: Adopt gradient thermal conductive structure design, which can reduce the junction temperature of the device by 25℃+ and extend the service life by 3 times.
  • 72-hour express delivery: reserve special production line capacity, and the expedited order can be shipped in as fast as 3 days (including quality inspection).
  • Value engineering cost optimization: Through material combination innovation and process simplification, we can help customers reduce costs by 15% while ensuring IPC standards.

Feel free to contact us if you have any inquiry for MCPCB: sales@bestpcbs.com.

What Is MCPCB Fabrication?

MCPCB fabrication involves manufacturing circuit boards with a metal core (typically aluminum or copper) to enhance heat dissipation. The process includes bonding a thermally conductive dielectric layer to the metal base for electrical insulation, laminating a copper circuit layer on top, and etching circuit patterns via photolithography. Vias are drilled and plated for electrical connectivity, followed by surface finishes to protect copper and ensure solderability. Designed for high-power applications, MCPCBs efficiently manage thermal stress in devices like LEDs, automotive systems, and power electronics.

What Is MCPCB Fabrication?

Benefits of Metal Core PCB Fabrication

  • Superior Heat Dissipation – Metal cores (Al/Cu) conduct heat 8–12× faster than FR4, reducing component temperatures by up to 15°C (e.g., LEDs). Extends product lifespan and prevents thermal throttling.
  • Enhanced Durability – Metal substrates resist warping and vibration, ideal for automotive/industrial use. Withstands temperatures up to 120°C continuously.
  • Compact Design – Eliminates bulky heatsinks, enabling thinner devices. Supports double-sided component mounting.
  • Cost Efficiency – Reduces reliance on external cooling systems. Lower maintenance costs due to higher reliability (MTBF ≄50,000h).
  • Eco-Friendly – Aluminum cores are recyclable, aligning with sustainability goals.
  • High-Power Performance – Handles power densities >20 W/cmÂČ (e.g., IGBT modules) without degradation.
  • EMI Shielding – Metal base acts as a natural shield, reducing electromagnetic interference.
Benefits of Metal Core PCB Fabrication

Applications of Metal Core PCB Fabrication

  • High-Power LED Lighting – Directs heat from LEDs to metal core, preventing premature failure. Extends lifespan and reduces maintenance costs.
  • Electric Vehicle (EV) Systems – Cools battery modules, motor controllers, and charging units. Withstands vibration and thermal stress for reliable operation.
  • Renewable Energy Inverters – Enhances thermal efficiency in solar/wind inverters, minimizing energy loss and boosting ROI.
  • Medical Imaging & Diagnostics – Stabilizes temperature-sensitive components (e.g., lasers, sensors). Ensures precision in critical healthcare devices.
  • Aerospace & Defense Electronics – Resists extreme temperatures and mechanical stress in satellite/aviation systems. Maintains performance during rapid thermal cycling.
  • Industrial Motor Control – Manages heat from high-current motor drivers and inverters. Prevents thermal deformation, ensuring continuous operation.
  • 5G Base Station Modules – Efficiently dissipates heat from high-frequency RF components. Maintains signal integrity and reliability in dense wireless infrastructure.
  • EV Charging Infrastructure – Supports high-power DC charging by rapidly conducting heat away from power electronics. Enables faster, safer charging solutions.

MCPCB Fabrication Processes

1. Design & Engineering

  • Use EDA tools to create PCB layout, adhering to IPC-2221 standards.
  • Generate Gerber files and validate through Design Rule Checks (DRC).

    2. Material Preparation

    • Select metal substrate (aluminum/copper), insulating layer (epoxy/ceramic), and copper foil.
    • Cut metal base to specified dimensions.

    3. Metal Substrate Treatment

    • Clean substrate to remove contaminants.
    • Apply insulating layer via coating or lamination, ensuring uniformity.

    4. Circuit Layer Formation

    Use photolithography to pattern copper traces:

    • Coat substrate with photoresist.
    • Expose to UV light through circuit masks.
    • Develop and etch to remove excess copper.

    5. Lamination & Pressing

    • Stack layers (metal base, insulating layer, copper foil) with prepreg.
    • Press under high temperature/pressure to bond layers (IPC-6012 compliance).

    6. Drilling & Plating

    • Drill via holes for interlayer connections.
    • Electroplate holes to deposit copper, ensuring conductivity (IPC-A-610).

    7. Surface Finish

    • Apply surface treatment (e.g., ENIG, OSP) to protect copper and enhance solderability.

    8. Testing & Inspection

    • Electrical test (flying probe) to verify connectivity.
    • AOI for defects, thermal stress test for reliability.

    9. Profiling & Cutting

    • Route PCB to final shape, V-cut or bevel edges as needed.

    10. Packaging & Shipping

    • Final inspection, vacuum packaging to prevent oxidation.

    How to Find MCPCB Fabrication Factories?

    A guide about how to find MCPCB fabrication factories:

    1. Search Online: Use Google/Bing with keywords: “MCPCB manufacturer China,” “metal core PCB fabrication.”

    2. Browse B2B Platforms: Check Alibaba International, Made-in-China, or Global Sources. Filter by Trade Assurance, UL/IPC-6012 certifications, and MOQ.

    3. Attend Global Trade Shows: Visit Productronica China, HKTDC Electronics Fair, or CES to meet suppliers and inspect samples.

    4. Verify Certifications: Confirm UL, ISO 9001, and IPC-6012 compliance via official databases.

    5. Request Quotes: Send detailed specs (materials, layer count, thermal requirements) and ask for free prototypes + DFM feedback.

    6. Audit Factories: Check production equipment (automation level), AOI/X-ray inspection, and thermal testing labs via virtual/on-site visits.

    7. Prioritize Technical Expertise: Choose factories with MCPCB capabilities and experience in high-power applications (LED, automotive).

      How to Find MCPCB Fabrication Factories?

      Why Choose Best Technology as MCPCB Manufacturer?

      • Precision Manufacturing for High-Performance MCPCBs: Specialized in production of aluminum and copper-core PCBs with ±10ÎŒm tolerance, ensuring optimal thermal conductivity for LED, automotive, and power electronics applications.
      • Custom Thermal Solutions for Your Needs: Our engineers dielectric layers and metal core designs to maximize heat dissipation, with thermal conductivity ranging from 1.0W/m·K to 4.0W/m·K for stable performance in high-power environments.
      • 24-Hour Rapid Prototyping for Critical Projects: Emergency orders processed within 24 hours, reducing time-to-market by up to 70% compared to industry standards.
      • Strict Quality Control for Bulk Orders: Full AOI and X-ray inspection on every bulk order, maintaining defect rates below 0.1% (industry average: 0.5%).
      • Factory-Direct Pricing with No Hidden Costs: Transparent pricing saves 15-30% compared to distributors, with no additional fees for design reviews or testing.
      • Fast Delivery with Consistent Lead Times: Standard lead times as short as 5 days (industry average: 10-14 days), with 98% on-time delivery rate.
      • Free DFM Analysis to Optimize Your Design: Technical team reviews designs for manufacturability, reducing production errors by up to 40%.
      • High-Quality Material Sourcing: Exclusively uses FR-4 and aluminum substrates from top suppliers like Rogers and Ventec for reliability.
      • Scalable Production Capacity: Handles orders from 10-unit prototypes to 50K+ monthly batches without compromising quality.
      Why Choose Best Technology as MCPCB Manufacturer?

      Our Certification & Quality Inspection

      • Certified & Compliant Standards: ISO 9001, ISO 13485, IATF 16949 Certified, and UL, REACH, RoHS Compliant.
      • AOI (Automated Optical Inspection): Detects surface defects like open/short circuits, missing components, and soldering issues.
      • X-Ray Inspection (Internal Defect Screening): Checks solder joint voids, cracks, and BGA/QFN hidden defects.
      • Peel Strength Test (Adhesion Assessment): Quantifies copper-clad laminate bonding force (ASTM D903).
      • Aging Test (Environmental Stress Screening): Includes thermal cycling (-40℃~85℃) and humidity exposure to validate long-term reliability.
      • Dimensional Verification (CMM/Profilometer): Measures thickness (±0.1mm), flatness, and hole alignment accuracy.

      How to Get Quotes for MCPCB Fabrication Service?

      To ensure accurate pricing and lead time, please submit the following technical specifications:

      1. Gerber Files

      • Layer stack-up (e.g., 1-layer Al base + 2 copper layers).
      • Drill files (.txt) with hole size tolerance (±0.1mm).

      2. Material Specifications

      • Metal core type (e.g., 6061-T6 aluminum, 2.0W/mK thermal conductivity).
      • Copper thickness (e.g., 1oz/35ÎŒm for signal layers, 2oz/70ÎŒm for power layers).
      • Dielectric layer thickness (e.g., 100ÎŒm FR-4 prepreg).

      3. Quantity & Lead Time

      • Sample order (1-5 pcs) or bulk production (100+ pcs).
      • Required delivery date (e.g., 3 days for prototypes, 15 days for bulk).

      4. Special Requirements

      • Thermal vias (e.g., 0.3mm diameter, 1.0mm pitch).
      • Surface finish (e.g., ENIG, HASL).
      • Electrical test criteria (e.g., 100% flying probe test)

      Why Choose Best Technology for MCPCB?

      • Factory-direct pricing with no hidden fees.
      • 24-hour rapid prototyping for urgent projects.
      • Thermal optimization support for high-power applications.

      Welcome to contact us if you have any request for metal core PCB: sales@bestpcbs.com.

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      IMS Insulated Metal Substrate PCB, IMS PCB

      July 25th, 2025

      What is an IMS PCB?

      Unlike traditional PCBs that rely on FR4 or other resin-based materials, IMS PCBs use a metal base—typically aluminum or copper. This base is paired with a dielectric layer and a copper circuit layer on top.

      It’s not just a circuit board. It’s a thermal solution that keeps devices cool and running longer.

      IMS Insulated Metal Substrate PCB, IMS PCB

      IMS PCB full form and meaning?

      The full form of IMS PCB is Insulated Metal Substrate Printed Circuit Board. It’s a PCB built to move heat away from components. That means better reliability, higher efficiency, and longer lifespan for your electronic products.

      In this type of PCB, the metal substrate acts as a heat spreader. The insulation layer isolates the copper circuit from the metal base, while still allowing heat to pass through. It’s a smart design that balances performance with thermal control.

      What is IMS material?

      The core of every IMS PCB lies in its materials. These layers provide the best thermal and electrical performance. Here’s what you’ll find in a standard IMS stack:

      • Metal Base Layer: Usually aluminum for cost-efficiency and light weight. Copper is also used when more heat dissipation is required.
      • Dielectric Layer: A thermally conductive but electrically insulating material. It transfers heat from the circuit layer to the metal base.
      • Copper Circuit Layer: This is where the actual electrical routing happens. It’s similar to traditional PCB copper layers but optimized for thermal contact.

      These three layers form the structure of IMS. The combination is compact, efficient, and powerful—especially in LED lighting, automotive electronics, and power converters.

      The insulation layer, in particular, must handle high thermal loads while resisting electrical breakdown. Advanced IMS designs often use proprietary dielectric materials to increase thermal conductivity and reduce overall thickness.

      How thick is a IMS PCB?

      The thickness of an IMS PCB depends on the application. But typically, here’s what you can expect:

      • Metal base layer: 0.5mm to 3.2mm
      • Dielectric layer: 0.03mm to 0.2mm
      • Copper layer: 0.035mm to 0.2mm

      The total thickness usually ranges from 0.8mm to 3.5mm. For LED lighting and compact modules, thinner IMS boards (like 1mm) are common. But in power-heavy designs, thicker boards provide the support and thermal capacity needed.

      IMS Insulated Metal Substrate PCB, IMS PCB

      Some custom builds even exceed 3.5mm if the heat demands are extreme. A thicker aluminum layer enhances mechanical strength and heat dissipation, but it also increases weight and cost. So choosing the right thickness is a balance of thermal needs and design efficiency.

      What is the difference between FR4 and IMS PCB?

      FR4 PCBs use glass-reinforced epoxy as their core. They are great for general electronics. But FR4 struggles with thermal stress. When high-power components run hot, FR4 doesn’t cool them fast enough. That leads to overheating and failure.

      IMS PCBs, on the other hand, are built for thermal performance. The metal base acts like a built-in heat sink. It draws heat away from critical components and spreads it out. That protects the electronics and improves reliability.

      FeatureFR4 PCBIMS PCB
      Core MaterialEpoxy-based fiberglassMetal (usually aluminum)
      Thermal Conductivity~0.25 W/mK1.0–9.0 W/mK or more
      Heat DissipationLimitedExcellent
      CostLowerSlightly higher, but worth it
      Mechanical StrengthModerateStronger due to metal core

      For everyday consumer electronics, FR4 is fine. But for power-hungry devices, IMS PCBs offer unmatched reliability.

      2 layer IMS PCB vs Multilayer IMS PCB

      While single-layer IMS boards are most common, especially in LED lighting, 2-layer and multilayer IMS PCBs are gaining ground in complex applications.

      2-layer IMS PCB means there are copper circuits on both sides of the dielectric layer, with one metal core layer. These offer more routing options while still allowing good heat dissipation.

      Multilayer IMS PCBs, on the other hand, can include several copper layers, separated by insulation, and only one side is connected to the metal base for heat transfer. This allows for complex routing and high component density while keeping thermal control.

      IMS Insulated Metal Substrate PCB, IMS PCB

      Benefits of 2-layer IMS PCB:

      • Better circuit flexibility
      • Moderate thermal management
      • More design freedom

      Benefits of Multilayer IMS PCB:

      • High circuit complexity
      • Suitable for dense power modules
      • Thermal performance still superior to FR4

      If you’re building a simple LED module, a single or 2-layer IMS may be enough. But if you’re designing a power controller, communication device, or automotive ECU, multilayer IMS is often necessary.

      IMS PCB stackup: What to know?

      Stackup design is more than just layers, it defines how your board handles heat, power, and performance. A typical IMS PCB stackup looks like this:

      • Copper circuit layer
      • Dielectric insulation layer
      • Metal substrate (usually aluminum)

      But there’s room for customization. Here’s what matters:

      • Copper thickness: Choose 1oz, 2oz, or more depending on current flow.
      • Dielectric performance: The higher the thermal conductivity (measured in W/mK), the better the heat transfer.
      • Metal base: Aluminum is the go-to for most. But copper or stainless steel can be used for extreme performance or rigidity.
      • Surface finish: Choose between HASL, ENIG, OSP, or others based on your assembly process.

      Stackup choices directly affect reliability. A poor choice here means components will overheat, solder joints will crack, or performance will drop.

      What are the applications of IMS PCB?

      IMS PCB is widely used in high power industry.

      • LED lighting: Keeps high-brightness LEDs cool, extending their life.
      • Automotive electronics: Used in headlights, sensors, battery modules.
      • Power converters: Manages heat in inverters and converters.
      • Industrial control systems: Ensures smooth performance under high power loads.
      • Communication base stations: Maintains signal integrity and prevents thermal breakdown.

      Why choose the right IMS PCB Manufacturer?

      At Best Technology, we understand the critical role IMS PCBs play. We’ve spent years perfecting the production process, materials, and stackup customization. Every board we deliver is tested for:

      IMS Insulated Metal Substrate PCB, IMS PCB
      • Thermal conductivity
      • Mechanical strength
      • Electrical reliability

      Whether you need standard single-layer boards or complex multilayer IMS PCBs, we can build it to your exact needs.

      Conclusion:

      IMS PCB is very important in high power electronics. From simple LED lights to advanced power modules, IMS boards keep your devices cool, stable, and efficient.

      Looking for an IMS PCB manufacturer you can rely on? Contact us today at sales@bestpcbs.com

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      Copper IMS PCB Design & Manufacturer, Fast Delivery

      July 25th, 2025

      Why choose copper IMS PCB? This guide covers copper IMS PCB from design to manufacturing, highlighting superior heat dissipation, design guidelines for high-power applications, and Best Technology’s precision production capabilities.

      Are you bothered by these problems?

      • How to break through the heat dissipation bottleneck?
      • How to balance cost and performance?
      • How to ensure signal integrity?

      Best Technology can provide:

      • Three-dimensional heat dissipation architecture: Exclusive copper-based composite design, thermal resistance reduced by 40%, achieving a 25°C reduction in temperature rise at the same power consumption.
      • Optimized material cost performance: Patented copper-aluminum hybrid process, reducing material costs by 18% while maintaining thermal conductivity.
      • Electromagnetic compatibility integration: Built-in gradient impedance design, 5G band signal attenuation is controlled within 0.3dB.

      Welcome to contact us if you have any inquiry for metal core PCB: sales@bestpcbs.com.

      What Is Copper IMS PCB?

      Copper IMS PCB (Insulated Metal Substrate Printed Circuit Board) is a high-performance circuit substrate constructed on a metal base (typically copper or aluminum) coated with a thermally conductive dielectric layer. It combines a copper circuit layer, a ceramic/polymer-based insulating layer, and a metal core to achieve exceptional thermal management (1-12 W/m/K conductivity), electrical insulation, and mechanical stability. Primarily used in high-power applications like LED lighting, automotive power modules, and aerospace systems, it offers 100x lower thermal resistance than FR4 while enabling efficient heat dissipation through its metal core structure.

      What Is Copper IMS PCB?

      What Is Stackup of Copper IMS PCB?

      Copper IMS PCB Stackup Structure

      Copper Base Plate

      • Material: High-purity electrolytic or rolled annealed copper (1–5 oz thickness) for superior thermal conductivity (398 W/m·K).
      • Function: Primary heat dissipation layer, often embedded with thermal vias to enhance heat transfer to external heat sinks.

      Dielectric Insulation Layer

      • Material: Ceramic-filled epoxy or high-thermal-conductivity prepreg (e.g., 0.15 mm thickness with thermal resistance <0.7°C/W).
      • Function: Provides electrical isolation between the copper circuit and base plate while minimizing thermal resistance.

      Copper Circuit Layer

      • Material: Thin copper foil (0.5–2 oz) for signal/power routing, processed via etching to form circuits.
      • Function: Conductive pathways for components, with optimized thickness balancing current capacity and signal integrity.

      Solder Mask & Surface Finish (Optional)

      • Solder Mask: Protects copper traces and prevents solder bridging.
      • Surface Finish: ENIG (Electroless Nickel Immersion Gold) or HASL (Hot Air Solder Leveling) for solderability and oxidation resistance.

      Design Considerations

      • Symmetry: Mirror-stacked layers (e.g., L1/L4, L2/L3) to prevent warping.
      • Thermal Vias: Embedded or plated-through vias to connect heat-generating components to the copper base.
      • Material Selection: High-Tg (>170°C) prepreg for stability under thermal cycling.

      Copper IMS PCB Specification

      ‌Parameter‌Specification
      ‌Base MaterialHigh-purity copper (C1100/C1020)
      Thermal Conductivity398 W/m·K (pure copper)
      Dielectric Layer Thickness0.1–0.5 mm (ceramic-filled epoxy)
      ‌Thermal Resistance<0.7°C/W (0.15 mm dielectric)
      ‌Max Operating Temp150–200°C (depends on dielectric)
      ‌Copper Thickness1–5 oz (35–175 ÎŒm) for circuits
      CTE (Thermal Expansion)17 ppm/℃ (matches silicon chips)
      ‌Dielectric Breakdown>3 kV (0.1 mm thickness)
      ‌Solder Mask OptionsWhite/Black (for LED applications)

      What Are Advantages of Copper IMS PCB?

      • Ultra-High Thermal Conductivity (398 W/m·K)‌ – Enables 25-40°C lower junction temperatures in high-power devices (e.g., LEDs, IGBTs), extending lifespan by 3-5x.
      • Exceptional Current Carrying Capacity (15A/mmÂČ)‌ – Supports 3x higher current density than standard FR4, reducing PCB size by 35% for equivalent power.
      • Thermal Expansion Matching (CTE=17ppm/℃)‌ – Eliminates solder joint failures in thermal cycling (-40°C to 150°C), critical for automotive/industrial apps.
      • Built-in EMI Shielding‌ – Reduces RF noise by 40dB without additional shielding layers, ideal for 5G/RF circuits.
      • High-Frequency Performance‌ – Superior signal integrity for GHz-range applications with minimal signal loss.
      • Miniaturization Potential‌ – Supports 0.1mm dielectric layers and microvias for chip-scale packaging in medical/portable devices.
      • Long-Term Reliability‌ – Zero oxidation risk and 100% recyclability reduce lifetime costs by 18% vs. aluminum.
      What Are Advantages of Copper IMS PCB?

      What Are Applications of Copper IMS PCB?

      • Automotive: Reduces overheating in LEDs/batteries – longer lifespan, lower maintenance.
      • Renewable Energy: Cuts heat loss in solar/wind systems – boosts efficiency, lowers costs.
      • Consumer Electronics: Prevents phone/tablet overheating – reliable performance, fewer repairs.
      • Medical Devices: Stable operation in critical tools – safer use, fewer replacements.
      • Aerospace/Defense: Withstands extreme temps/vibrations – reliable in harsh conditions.
      • Industrial Systems: Resists heat deformation – less downtime, higher productivity.
      • LED Lighting: Lowers temps in high-power lights – doubles lifespan, saves replacement costs.
      What Are Applications of Copper IMS PCB?

      How to Design A Copper IMS PCB for High Power?

      Design Guidelines for High-Power Copper IMS PCBs

      1. Material Selection

      • Use thick copper foil (2oz/3oz or higher) to handle high current densities.
      • Prioritize low-thermal-resistance dielectric layers (e.g., ceramic-filled polymers) to maximize heat transfer to the copper base.

      2. Thermal Management

      • Place heat-generating components (e.g., MOSFETs, LEDs) directly over the copper base for direct heat dissipation.
      • Add thermal vias under hot components to channel heat vertically to the copper layer.
      • Avoid thermal isolation; ensure continuous copper paths for heat flow.

      3. Current Path Optimization

      • Design wide, short traces for high-current paths to minimize resistance and IÂČR losses.
      • Use parallel traces or polygon pours to distribute current evenly.
      • Avoid sharp bends (≄90°) in high-current traces to reduce inductance and hotspots.

      4. Layer Stackup

      • Prioritize a 2-layer stack: copper base (bottom), dielectric layer, and copper top layer.
      • For complex designs, add internal copper layers with prepreg insulation, ensuring thermal vias connect all layers.

      5. Mechanical Stability

      • Maintain symmetry in layer stackup to reduce warping during reflow.
      • Use heavy copper (≄3oz) for rigid base support; avoid over-etching thin features.

      6. Component Placement

      • Isolate high-power components from sensitive analog/digital sections to prevent thermal interference.
      • Leave spacing around heat sinks or mounting holes for airflow or mechanical fixation.

      7. Testing & Validation

      • Perform thermal simulation (e.g., ANSYS Icepak) to verify heat dissipation under max load.
      • Test under worst-case power conditions to ensure junction temps stay below component limits.

      Notes: Balance thermal performance, electrical efficiency, and mechanical reliability. Prioritize direct heat paths, robust current handling, and material durability for high-power resilience.

      Copper IMS PCB Manufacturing Processes

      1. Material Preparation: Start with a copper base plate, a thermally conductive dielectric layer (e.g., ceramic-filled polymer), and top-layer copper foil. Materials are selected for thermal performance and durability.

      2. Lamination: Bond the layers under controlled heat and pressure. The copper base, dielectric, and top foil are fused to create a rigid, thermally efficient structure.

      3. Drilling: Precision-drill vias and through-holes. Clean debris thoroughly to ensure clean plating surfaces.

      4. Plating: Apply electroless or electrolytic copper plating to coat hole walls, enabling vertical electrical connections between layers.

      5. Etching: Use photoresist and chemical etching to remove excess copper from the top layer, leaving defined circuit traces.

      6. Surface Finish: Apply finishes like ENIG, OSP, or immersion silver to protect exposed copper and enhance solderability during assembly.

      7. Cutting & Profiling: Cut the panel into individual PCBs. Machine edges (e.g., V-score, routing) to meet required dimensions and shapes.

      8. Quality Testing: Perform electrical tests (continuity, isolation), thermal stress tests (e.g., reflow cycles), and visual inspections to ensure reliability and performance.

      Copper IMS PCB Manufacturing Processes

      Why Choose Best Technology as Copper IMS PCB Manufacturer?

      Reasons why choose Best Technology as your copper IMS PCB manufacturer:

      • Superior Thermal Performance: Copper core delivers 398 W/m·K conductivity, reducing device temperatures by 30% for extended product lifespan.
      • Rapid Prototyping Service: 24-hour turnaround for samples with same-day engineering review.
      • Competitive Pricing Structure: Transparent pricing with no hidden fees—cost-effective for high-volume production.
      • Strict Quality Control: 100% automated optical inspection (AOI) and X-ray testing for defect-free PCBs.
      • Fast Production Lead Times: 15-day standard lead time with expedited options for urgent orders.
      • High Current Carrying Capacity: Supports 15A/mmÂČ current density, enabling compact, high-power designs.
      • EMI Shielding Built-In: Copper substrate naturally reduces RF noise by 30dB without added layers.
      • Precision Laser Drilling: 50ÎŒm microvias for ultra-dense interconnects in advanced packaging.
      • Custom Material Solutions: Tailored dielectric formulations for specific thermal/electrical requirements.
      • Dedicated Engineering Support: 24/7 technical team for design optimization and troubleshooting.

      Our Copper IMS PCB Manufacturing Capabilities

      Base material:Copper
      Thermal Conductivity (dielectric layer):0.8, 1.0, 1.5, 2.0, 3.0 W/m.K.
      Board Thickness:0.5mm~3.0mm(0.02″~0.12″)
      Copper thickness:0.5 OZ, 1.0 OZ, 2.0 OZ, 3.0 OZ, up to 10 OZ
      Outline:Routing, punching, V-Cut
      Soldermask:White/Black/Blue/Green/Red Oil
      Legend/Silkscreen Color:Black/White
      Surface finishing:Immersion Gold, HASL, OSP
      Max Panel size:600*500mm (23.62″*19.68″)
      Packing:Vacuum/Plastic bag
      Samples L/T:4~6 Days
      MP L/T:5~7 Days

      Our IMS PCB Quality Inspection

      1. Electrical Continuity & Isolation Testing

      • Method: Automated flying probe/bed-of-nails testing.
      • Focus: Verify zero shorts/opens in circuits; ensure ≄50MΩ isolation resistance between traces.
      • Purpose: Guarantees functional reliability for high-power signals.

      2. Thermal Performance Validation

      • Method: Thermal imaging under max load (e.g., 150°C junction temp).
      • Focus: Measure thermal resistance (<2°C/W) and hotspot uniformity.
      • Purpose: Confirms heat dissipation efficiency for demanding applications.

      3. Mechanical Stress Resistance

      • Method: 3-point bend test (≄10N force) and vibration testing (20–2000Hz).
      • Focus: Ensure <0.2mm warpage and no delamination after stress.
      • Purpose: Validates durability in high-vibration environments (e.g., automotive/aerospace).

      4. Thermal Cycling Reliability

      • Method: -40°C to +150°C cycles (100x).
      • Focus: Check for cracks, delamination, or electrical drift post-cycling.
      • Purpose: Proves long-term reliability in extreme temperature swings.

      5. Solderability & Surface Finish Integrity

      • Method: Wetting balance test (ENIG/OSP finishes).
      • Focus: Ensure >95% solder coverage with no voids.
      • Purpose: Prevents assembly defects and ensures strong component bonds.

      6. Dielectric Breakdown Testing

      • Method: 500V AC withstand test for 1 minute.
      • Focus: Confirm dielectric layer resistance (>1000V) to prevent leakage.
      • Purpose: Critical for high-voltage applications (e.g., industrial power systems).

      7. Visual & Dimensional Accuracy

      • Method: AOI (Automated Optical Inspection) + 2D/3D metrology.
      • Focus: Detect micro-cracks, trace misalignment (<50”m tolerance), and pad integrity.
      • Purpose: Ensures precision for fine-pitch components (e.g., 0.4mm BGA).

      8. Traceability & Certification

      • Method: Batch-specific QR codes linked to raw material certs (e.g., UL, RoHS).
      • Focus: Full audit trail from copper sourcing to final test data.
      • Purpose: Builds trust through transparency and compliance.

      How to Get A Quote For Your IMS PCB Project?

      How to Get a Quote for Your IMS PCB Project: A Clear Checklist

      1. Technical Specifications

      • Gerber Files (RS-274X format preferred.
      • Bill of Materials (BOM) – Including all components and their specifications.
      • Assembly Drawings (if applicable).
      • Layer Stackup Details (e.g., dielectric thickness, copper weight).

      2. Design Requirements

      • Board Dimensions (maximum length, width, and thickness).
      • Material Specification (e.g., Copper IMS, aluminum IMS, hybrid options).
      • Thermal Requirements (expected operating temperature range).
      • Surface Finish (ENIG, HASL, immersion silver, etc.).

      3. Quantity & Lead Time

      • Order Quantity (low-volume prototypes vs. mass production)
      • Desired Lead Time (standard vs. expedited options)

      4. Compliance & Certifications

      • Industry-Specific Standards (IPC Class 2/3, UL, RoHS, REACH, etc.)
      • Testing Requirements (thermal cycling, high-voltage testing, etc.)

      5. Packaging & Shipping

      • Special Handling Instructions (ESD-safe, vacuum-sealed, etc.)
      • Shipping Address & Contact Details.

      Next Steps

      • Gather all required documents using this checklist.
      • Submit your request via email (sales@besttech.com) or our online quote form.
      • Receive a detailed quote with timeline, pricing, and DFM recommendations.

      Contact us now if you have any request for IMS PCB: sales@bestpcbs.com.

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      Posted in best pcb, bestpcb, mcpcb, Metal Core PCB | No Comments »

      LED MCPCB board, Aluminium PCB, LED PCB boards

      July 25th, 2025

      LED MCPCB board is a metal-based printed circuit board designed specifically for LEDs. Its aluminum or copper substrate is combined with an insulating thermal conductive layer and a copper foil circuit to quickly conduct heat away from the chip, improve lighting efficiency and life, and is widely used in high-power COB, car lights, street lights and backlight modules.

      What is mcpcb led?

      Short for Metal Core Printed Circuit Board, MCPCB is a game-changer in the world of LED lighting.

      Unlike standard circuit boards, an MCPCB LED board has a special metal base, often aluminum. This metal base isn’t just there for support—it’s a built-in cooling system.

      Heat is the enemy of LEDs, and the metal in an MCPCB helps pull heat away from the LEDs, keeping them cool, strong, and long-lasting.

      MCPCB boards are commonly used in LED bulbs, light strips, automotive lights, floodlights, and backlit panels. The key reason is simple—they work better under heat, last longer, and deliver brighter, more stable light.

      What is the full form of Mcpcb LED?

      MCPCB LED stands for Metal Core Printed Circuit Board for Light Emitting Diode applications. Here’s the breakdown:

      • M = Metal
      • C = Core
      • P = Printed
      • C = Circuit
      • B = Board

      These boards have one core purpose—to drive LED lighting performance to a higher level. The aluminum (or sometimes copper) base inside the board spreads heat away from the light source, keeping everything running smoothly.

      • Copper Foil Layer: the copper layer used is relatively thicker than normal CCLs ( 1oz-10oz). A thicker layer of copper means a larger current carrying capacity.
      • Dielectric Layer: the Dielectric layer is a thermally conductive layer and is around 50ÎŒm to 200ÎŒm thick. It had a low thermal resistance and it suitable for its application.
      • Aluminum Base: The third layer is the aluminum base which is made up of aluminum substrate. It has a high thermal conductivity.

      What are the types of LED board in lighting?

      Lighting applications demand variety. LED PCBs come in many forms to meet these needs.

      • Standard FR4 LED PCBs: Made with traditional fiberglass, they’re good for low-power lights. But they struggle with heat.
      • Aluminium LED PCBs: The most common metal core PCB used in LED applications. Excellent thermal performance. Lightweight, cost-effective.
      • Copper Core LED PCBs: Used when extreme heat dissipation is needed. Stronger than aluminum but also more expensive.
      • Flexible LED PCBs: Ideal for curves and corners. Used in design-focused lighting.
      • Ceramic LED PCBs: Rare, but they handle high heat exceptionally well.

      Among these, MCPCB LED boards—especially aluminum ones—lead the industry for high-lumen applications due to their superior heat control.

      How is MCPCB LED board assembled?

      The assembly of an LED MCPCB board involves several precise steps:

      • Solder Paste Application: A layer of solder paste is applied onto the pads of the metal core PCB using a stencil.
      • Pick & Place Process: LED chips and other surface-mount components are placed onto the soldered areas using high-speed machines.
      • Reflow Soldering: The board goes through a reflow oven. Heat melts the solder paste and secures the components in place.
      • Inspection: Automated Optical Inspection (AOI) checks for soldering accuracy. This step ensures every component is perfectly aligned and attached.
      • Testing: Final tests simulate real-life lighting conditions to verify the LED PCB’s performance.

      Assembly must be precise and efficient. And with aluminium PCB bases, the process also requires care to avoid overheating during reflow.

      How to test led circuit board?

      Testing is where quality becomes visible. Here’s how to ensure every MCPCB board performs as expected:

      • Visual Inspection: This checks for soldering issues or misplaced components.
      • Multimeter Testing: This tool checks whether power is flowing correctly across the circuit.
      • Functional Testing: Apply voltage. Does the LED light up properly? Are brightness levels correct?
      • Thermal Imaging: Some use infrared cameras to check for hotspots that indicate poor heat dissipation.

      Reliable mcpcb led boards pass these tests with ease, offering users the confidence of durability and safety.

      How does an aluminium PCB help LED lights?

      Aluminum PCBs are the key enabler behind high-performance LED lighting. Here’s why they matter:

      • Heat Dissipation: Aluminium spreads heat away from the LED chip faster than traditional materials.
      • Durability: Aluminium boards are solid. They withstand physical and thermal stress better than fiberglass.
      • Lightweight: Despite their strength, aluminium PCBs are light—perfect for compact or portable lighting products.
      • Longer Lifespan: Cooler LEDs mean longer-lasting lights. An LED on an aluminium PCB can last 50,000+ hours with minimal loss in brightness.
      • Energy Efficiency: Efficient cooling means less wasted energy, which boosts overall performance.

      What is the difference between PCB and Mcpcb?

      Though they look similar, PCB and MCPCB are built for very different challenges.

      Base Material:

      • PCB: Uses FR4 fiberglass or plastic.
      • MCPCB: Uses aluminium or copper for better thermal control.

      Thermal Conductivity:

      • Standard PCB: Poor heat dissipation.
      • MCPCB: Excellent thermal performance.

      Cost:

      • FR4 PCBs are cheaper.
      • MCPCBs cost more, but offer superior reliability for high-power devices.

      Applications:

      • PCB: Best for low-power electronics.
      • MCPCB: Ideal for LEDs, power supplies, automotive lights, and high-intensity applications.

      So, while both have their place, when heat is involved, MCPCB wins.

      Is MCPCB LED board better than FR4?

      Yes, and it’s not even close in most LED applications.

      FR4 PCBs are fine for low-power, low-heat environments. But when you add in high-lumen LEDs, the heat spikes. FR4 can’t handle that for long.

      MCPCB LED boards step in with built-in heat control, thanks to their metal core. They maintain brightness, extend lifespan, and prevent failure. That’s why most LED manufacturers rely on aluminium MCPCBs for performance lighting.

      In short, if your LEDs matter, MCPCBs deliver.

      What affects LED PCB board price?

      The price of a led mcpcb board can vary widely. Here’s what affects it:

      • Material Type: Aluminium costs more than FR4, copper even more.
      • Board Thickness: Thicker boards handle heat better but cost more to produce.
      • Thermal Conductivity Rating: The better the heat transfer, the higher the price.
      • Board Size and Layers: Larger and multi-layer boards need more material and time.
      • Design Complexity: More components, special shapes, and tight tolerances mean higher costs.
      • Volume: Bulk orders usually lower the mcpcb led board price.
      • Surface Finish: ENIG, HASL, or OSP finishes affect both durability and cost.
      • Assembly Services: Adding LED pcb assembly raises prices but saves time and effort.

      Still, when you think long-term, the right LED PCB saves money, longer life, fewer failures, and better performance.

      Conclusion:

      MCPCB LED boards, especially those made with aluminium, are the heartbeat of modern lighting. They’re engineered to handle heat, boost brightness, and outlast traditional boards.

      Aluminium PCB is the most popular type, balancing cost and performance. Compared to FR4, MCPCB boards are simply better for LEDs.

      For more details, quotes, or expert guidance on choosing the right LED MCPCB board, contact our team at sales@bestpcbs.com

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      Posted in best pcb, FR4 PCB, mcpcb, Metal Core PCB | No Comments »

      How to Cut Copper IMS PCB Costs? 7 Tips Cut It by 25%

      July 25th, 2025

      Copper IMS PCB costs can climb fast, especially in high-power or LED projects. Yet, you don’t have to accept high pricing. This blog will walk you through practical ways to cut your copper IMS PCB costs by 25%, without losing quality.

      Best Technology is a leading IMS PCB manufacturer, delivering Copper IMS PCB and aluminum IMS PCB prototypes, fabrication, assembly, and box build service to the increasingly developing world of electronics. Most of our engineers have worked at Best Technology for over 10 years. We can apply our empirical knowledge to do DFM reviews and recommend the most suitable material that meets your performance target.

      Moreover, supporting low to medium volume orders and short lead times gives us a competitive edge in world markets. Per our company policy, there are normally 2-3 weeks for the complex boards, and we will adhere to this policy from the top down without any excuses. This saves you the headache of the MOQ barrier and unpredictable and long times. Whatever questions or enquiries you have about copper IMS PCB will be answered by our team, pls do call at +86-755-2909-1601 or sales@bestpcbs.com.

      How to Cut Copper IMS PCB Costs? 7 Tips Cut It by 25%

      What is a Copper IMS PCB?

      A copper IMS PCB stands for insulated metal substrate circuit board with a copper base. Unlike aluminum IMS boards, copper offers better thermal conductivity. These boards are used in power electronics, LED lighting, and automotive systems where heat control matters most.

      What is a Copper IMS PCB?

      What Are Other Names for Copper IMS PCB?

      Besides copper IMS PCB, people call them copper core PCBs, copper metal core boards, or copper-based IMS boards. Sometimes, they are referred to as thermal copper PCBs due to their role in heat dissipation.

      Are IMS Printed Circuit Boards Made of Copper?

      Not all IMS printed circuit boards use copper. Many are made with aluminum. However, when thermal demand is high, copper is preferred for its superior conductivity and durability. So, copper IMS PCB is often used in demanding environments.

      What Is the Difference: Copper IMS PCB vs Copper MCPCB?

      Many people think copper IMS PCB and copper MCPCB are the same—but they are not exactly equal. Let’s break it down.

      Key Differences:

      FeatureCopper IMS PCBCopper MCPCB
      MeaningCopper board with insulation layerCopper board, may or may not have insulation
      Structure3 layers: Circuit + Insulation + Copper BaseMay have only Copper Base and Circuit
      FocusHighlights heat control + insulationHighlights metal core
      UsageHigh voltage, high power (e.g., LED, power)General applications, lower insulation need
      RelationshipA type of MCPCB with insulationBroader group, includes IMS boards

      Simple Summary:

      • Copper IMS PCB = special copper MCPCB that must have an insulation layer.
      • Copper MCPCB = copper metal board, not always insulated.
      • So, every copper IMS PCB is a copper MCPCB, but not every copper MCPCB is an IMS PCB.

      This difference matters when your project needs both heat control and electrical insulation—then, go for copper IMS PCB.

      What Temperature to Solder Copper IMS?

      Copper IMS PCBs have great heat-spreading ability, but careful control during soldering is still necessary—mainly to protect the insulation layer. Here are the key points to know:

      1. Typical Temperature Range
        Soldering temperatures usually fall between 220°C and 280°C. This matches well with most lead-free solders, which melt at around 217°C to 250°C. However, always check the exact type of solder you’re using and adjust the temperature accordingly.
      2. Insulation Layer Protection
        While copper spreads heat fast, the insulation layer (often made from polyimide or similar materials) can only handle 200°C to 250°C for short periods. If the temperature is too high or held too long, the insulation may delaminate or even carbonize, leading to long-term failure.
      3. Peak Temperature Control
        Keep the peak soldering temperature no more than 30°C to 40°C above the solder’s melting point. For example, if your solder melts at 240°C, aim for 270°C to 280°C. This range helps prevent damage while ensuring proper solder flow.
      4. Soldering Time
        Limit the soldering time to 2–4 seconds at peak temperature. But it’s not just about time—also manage your temperature curve, including preheating and cooling. A smooth curve helps reduce thermal stress on the insulation.
      5. Testing Is Essential
        Before starting mass production, run tests. Methods like TGA (Thermogravimetric Analysis) or DSC (Differential Scanning Calorimetry) help confirm how well the insulation layer handles heat. These tests can catch weak points early.

      To conclude, copper IMS PCBs need careful soldering, even though they manage heat well. Protect the insulation layer by controlling temperature and time, and always validate your process before full production. This ensures long-term reliability without hidden risks.

      What Is a Copper Pour in IMS Printed Circuit Board?

      In copper IMS PCBs, a copper pour is a large area of copper applied across parts of the board. It plays a key role in heat spreading and grounding, but there’s more to understand. Here’s what matters:

      1. Types of Copper Pour
        There are two common types:
      • Solid Pour – a fully filled copper area, ideal for thermal management.
      • Grid Pour – a mesh-like pattern, mainly used to reduce EMI (electromagnetic interference) but less effective for heat.

      In IMS PCBs, solid copper pour is preferred because it transfers heat better.

      1. How It Works
        The copper pour connects to the copper base through thermal vias or directly, depending on design. It reduces thermal resistance, helping heat flow from hot components into the copper base. The insulation layer, typically with 1–3 W/m·K thermal conductivity, also aids this process.
      2. Benefits for Current Flow
        Besides heat, copper pour can improve current flow by reducing resistance paths—especially useful in high-power circuits.
      3. Cost Saving Potential
        By designing a smart copper pour, you may reduce or even avoid extra heat sinks. But this depends on your component layout and power density. If components are spread out, the pour helps spread heat more evenly.
      4. EMI Consideration
        Copper pour also affects electromagnetic interference. A well-designed pour can shield signals and lower EMI, but poor design might cause noise issues. So, it’s important to balance thermal and electrical needs.

      In a nutshell, copper pour in IMS PCBs is more than just extra copper. It’s a tool for better thermal control, grounding, and possibly cost reduction. Using solid pour for heat and careful layout helps you get the most out of your copper IMS PCB design.

      What Are the Price Differences: Copper IMS PCB vs PCB?

      Copper IMS PCB is more expensive than standard FR4 PCB. The reasons include the cost of copper, complex fabrication, and thicker insulation layers. Yet, when you compare performance, especially in thermal control, copper IMS PCB often justifies its price. In the long run, it prevents failures and reduces rework costs.

      What Are the Price Differences: Copper IMS PCB vs PCB?

      What Is the Primary Role of Copper in PCB?

      Copper in PCB handles both signal transmission and heat transfer. In copper IMS PCBs, copper mainly moves heat away from components. This prevents overheating and boosts lifespan. It also ensures power flows efficiently across the board.

      How to Cut Copper IMS PCB Costs?

      Here’s how you can save up to 25% without losing quality:

      1. Optimize Board Design

      Efficient layouts cut material waste. Using the right copper thickness and pour design can save money and improve heat flow. Avoid over-designing areas where it’s not needed.

      2. Use Standard Panel Sizes

      Non-standard sizes increase costs. By designing copper IMS PCB that fits common panel sizes, you save on material and labor.

      3. Choose the Right Manufacturer

      A reliable IMS PCB manufacturer offers better pricing with quality. Best Technology offers cost-effective solutions thanks to its streamlined process and MES tracking. This prevents delays and errors, saving your time and money.

      4. Order in Bulk

      Higher volumes reduce unit cost. Plan your orders to maximize economies of scale.

      5. Avoid Excessive Tolerances

      Unneeded tight tolerances add cost. Confirm which tolerances are essential for function, and where you can relax specs.

      6. Select the Right Finish

      Some finishes cost more than others. Choose one that meets your needs without overpaying. HASL or ENIG may be enough for most copper IMS PCBs.

      7. Plan Ahead for Assembly

      Working closely with your assembler ensures smoother processes. Avoid late changes which can drive up rework costs. Early design for manufacturing reviews helps prevent this.

      Why Choose Best Technology as Your Original IMS PCB Manufacturer in China?

      Best Technology solves key customer problems in copper IMS PCB production.

      • 24/7 Technical Customer Service: Many buyers face delays, inconsistent quality, or unclear communication. Our team ensures prompt support and fast feedback within 12 hours.
      • Premium Quality‌ IMS Board PCB: We utilize the ISO9001, IATF16949, and AS9100D systems to ensure total quality control.
      • Cutting-edge Material Management System: Our MES (Manufacturing Execution System) ensures complete traceability of components, preventing any mix-ups. Clients trust us for consistent quality, even in complex builds.
      • NO MOQ: We support both small and large volume orders with fast turnaround. Whether you need copper IMS PCBs for LED lighting or automotive, we deliver without MOQ. Our technical team works with you from start to finish, offering effective solutions instead of just the boards.

      In short, Best Technology doesn’t just make copper IMS PCBs—we help you succeed in your projects with the right solutions, on time and budget.

      All in all, cutting copper IMS PCB costs doesn’t mean cutting corners. By focusing on smart design, choosing standard panel sizes, and partnering with the right manufacturer, you can reduce costs by up to 25%—without sacrificing quality or reliability. However, many buyers struggle with slow responses, poor quality control, and unclear communication. These issues not only delay projects but also lead to higher costs in the long run.

      At Best Technology, we help you avoid these problems. Our professional team offers quick feedback, strict quality control, and full traceability through MES systems. We support both small and large volume orders, and we’re committed to delivering consistent, high-quality copper IMS PCBs on time. If you have new projects for enquiry, pls let us know your specific requirement at sales@bestpcbs.com, then we can quote you as rapid as we can.

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      Posted in best pcb, bestpcb, mcpcb | No Comments »

      Double Sided IMS PCB, IMS PCB Manufacturer

      July 25th, 2025

      If you are working on high-power electronics, LED lighting, or power conversion modules, thermal management is probably one of your biggest challenges. That’s where the double sided IMS PCB comes into play.

      As a reliable IMS PCB manufacturer, Best Technology has been helping engineers and purchasing teams solve complex design issues using double sided metal core solutions that offer excellent thermal performance and mechanical strength. Our products are widely used in various applications like LED lighting, automotive electronics, power modules, and more.

      What Is a Double Sided IMS PCB?

      A double sided IMS PCB (Insulated Metal Substrate Printed Circuit Board) is a type of PCB that uses a metal base—typically aluminum or copper—combined with two copper layers and insulating dielectric layers in between. This structure allows designers to place components on both sides or route critical signals more efficiently while managing heat effectively.

      Unlike single-sided IMS PCBs that have components and traces only on one side, double-sided versions support components mounting and traces layout both on top and bottom side, it allowed complex designs, higher current flow, and better heat transfer through thermal vias.

      In simple terms: if your board gets hot and needs more routing space, a double sided IMS PCB can help.

      Double Sided IMS PCB

      Double Sided IMS PCB Structure

      A double sided IMS PCB is built with multiple carefully selected layers, designed to balance electrical performance, mechanical strength, and heat dissipation. The general structure looks like this:

      • Top copper layer: Carries the electrical traces and component pads.
      • Top dielectric layer: An electrically insulating but thermally conductive material.
      • Metal core: Usually aluminum or copper, it serves as a mechanical base and heat sink.
      • Bottom dielectric layer: Same material as the top layer, separating the metal core from the bottom copper.
      • Bottom copper layer: It is a trace layer, used for power, ground, or additional signal traces.

      Plated through holes (vias) allow electrical connection between the top and bottom copper layers. These vias can also help conduct heat away from hot components into the metal core, improving thermal performance.

      Types of IMS PCB Materials

      In IMS PCB design, the metal base plays a critical role in heat dissipation and mechanical stability. The two most commonly used core materials are aluminum and copper, each with distinct advantages and application scenarios.

      1. Aluminum-Based IMS PCB

      Aluminum is by far the most widely used metal base material in IMS PCBs. It offers a great balance between cost, weight, and thermal performance. With a typical thermal conductivity of 1.0 to 3.0 W/m·K, aluminum is sufficient for most applications where moderate heat needs to be managed efficiently.

      Advantages of aluminum base:

      • Cost-effective: More affordable than copper, suitable for mass production.
      • Lightweight: Ideal for weight-sensitive designs like automotive lighting and portable devices.
      • Corrosion-resistant: Naturally forms a protective oxide layer, extending board life.
      • Good thermal conductivity: Capable of dissipating heat from surface-mounted components quickly.

      Typical applications:

      • LED lighting systems (e.g. street lights, home bulbs)
      • Power driver boards
      • Consumer electronics
      • Automotive LED modules

      Aluminum IMS PCBs are perfect for designs that need reasonable thermal performance at a lower cost. They’re especially common in LED products, where keeping junction temperature low is essential to extending light source life.

      Aluminum-Based IMS PCB

      2. Copper-Based IMS PCB

      Copper-based IMS PCBs are chosen when thermal management becomes critical, or when mechanical robustness is equally important. Copper has a thermal conductivity of around 5.0 W/m·K—more than double that of aluminum—making it an ideal choice for high-power or high-density applications.

      Advantages of copper base:

      • Superior heat dissipation: Excellent for fast heat transfer in high-power designs.
      • High mechanical strength: Less prone to flexing or warping under load or heat.
      • Stable performance at high temperatures: Supports continuous operation in demanding environments.
      • Better current carrying capacity: Enables narrower traces for the same current level.

      Typical applications:

      • Power inverters and converters
      • Motor control units and industrial drives
      • RF amplifiers and telecom power modules
      • Aerospace and defense electronics
      • High-performance LED arrays

      Due to its higher cost and weight, copper is generally used in specialized applications where reliability, thermal performance, or current handling are mission-critical. It’s especially favored in automotive power systems, high-end industrial equipment, and aerospace control circuits.

      Copper-Based IMS PCB

      Single vs Double Sided IMS PCB

      When choosing between single-sided and double-sided IMS PCBs, understanding their structural and functional differences is essential. Below is a detailed comparison covering performance, design flexibility, manufacturing complexity, and cost.

      Comparison AspectSingle Sided IMS PCBDouble Sided IMS PCB
      Copper LayersOne layer on topTwo layers – top and bottom
      Component PlacementOnly on one sidePossible on both sides or top side with backside routing
      Thermal Conductivity PathHeat moves in one direction (top to base)Heat can dissipate through both layers via thermal vias
      Routing FlexibilityLimited routing optionsMore complex, denser routing possible
      Via UsageUsually no plated viasRequires plated through vias for inter-layer connections
      Design ComplexitySimpler, suitable for low-power applicationsSupports more complex, high-current designs
      Manufacturing CostLower cost, fewer stepsHigher cost due to drilling, plating, and alignment
      Board ThicknessGenerally thinnerSlightly thicker due to multilayer structure
      Current Carrying CapacityLimited by single copper layerHigher due to dual copper planes
      Mechanical StrengthModerateHigher due to more balanced structure
      Typical ApplicationsLED bulbs, indicator lights, basic power suppliesLED headlights, motor drivers, power inverters
      Preferred Use CasesCost-sensitive and thermally moderate projectsThermally demanding, high-power, or complex circuitry

      At Best Technology, we provide both types with full engineering support, helping you select the right option based on your performance goals and budget.

      IMS PCB Design Considerations

      Designing an effective IMS PCB, especially a double sided IMS PCB, requires more than just basic layout knowledge. As a professional IMS PCB manufacturer, we often find that early-stage design decisions directly impact not only the cost but also manufacturability, reliability, and thermal performance.

      Here are our top recommendations to help you design a high-quality IMS PCB that meets both technical and production requirements:

      1. Understand the Thermal Path Early

      IMS PCBs are often chosen for their excellent heat dissipation. To maximize this advantage:

      Place heat-generating components (like LEDs, power ICs, MOSFETs) directly above the metal core or near thermal vias.

      • Use thermal reliefs for pads to balance solderability and heat transfer.
      • Avoid thick dielectric layers if fast heat conduction is critical—choose higher thermal conductivity materials instead.

      2. Use Plated Vias Wisely

      In double sided IMS PCBs, plated through holes (vias) are crucial to connect the top and bottom copper layers. However:

      • Vias increase cost due to drilling and plating steps.
      • Avoid placing too many vias near mechanical mounting holes to prevent cracking during assembly.
      • For high-current paths, increase via diameter and plating thickness, or use multiple thermal vias in parallel.

      3. Optimize Trace Widths and Spacing

      Due to higher currents in IMS boards:

      • Use wider traces wherever possible, especially for power lines.
      • Respect minimum clearance based on copper thickness and voltage—this prevents arcing and improves reliability.
      • Avoid sharp 90° corners on high-current or RF traces; use 45° or curved corners instead.

      If you’re not sure how wide your traces should be, send us your current ratings—we’ll recommend widths based on IPC standards and real-world performance.

      4. Select Suitable Copper Thickness

      For IMS PCBs, copper thickness directly impacts both electrical and thermal performance:

      • Standard thickness is 1oz (35”m), suitable for low to medium current.
      • For high current or improved thermal conduction, 2oz or 3oz copper is recommended.
      • Very thick copper (up to 10oz) is possible, but it increases cost and etching complexity.

      5. Component Layout Planning

      • Avoid clustering hot components together—spread them out to help heat dissipation.
      • Keep temperature-sensitive components (like ICs, sensors) away from heat sources.
      • Leave clearance around mounting holes to prevent shorting with metal base.

      6. Surface Finish Compatibility

      Tell us your assembly process (manual, reflow, wave soldering) and component pitch—we’ll advise the best finish.

      • ENIG is recommended for flat surfaces and fine-pitch components.
      • HASL is affordable but not ideal for tight layouts.
      • Immersion silver and OSP are good for high-frequency circuits.

      7. Share Your Design Goals Early

      Many designers only share Gerber files at the last step. But as a manufacturer, we can provide more value when we’re involved earlier.

      • Let us know if your priority is cost, thermal performance, space saving, or high current.
      • Share thermal simulation data if available—we can help validate materials and layout choices.
      • If you’re unsure between aluminum and copper base, we can guide based on your budget and operating temperature.

      Contact us early often helps reduce revisions, avoid design traps, and improve yield—saving both time and money.

      Copper-Based IMS PCB Manufacturer

      Double Sided IMS PCB Manufacturing Process

      Manufacturing a double sided IMS PCB involves multiple controlled steps. Here’s we simply introduce the manufacturing processed involving in the insulated metal substrate fabrication:

      1. Material Lamination

      The copper foils and dielectric are laminated on both sides of the metal base with high pressure and temperature.

      2. Drilling & Via Formation

      Mechanical or laser drilling creates via holes through the board. These holes are then plated with copper to allow connectivity between top and bottom copper layers.

      3. Imaging & Etching

      Circuit patterns are created on both copper layers using photoresist and chemical etching.

      4. Solder Mask Application

      Solder mask is applied to protect copper from oxidation and to guide solder placement during assembly.

      5. Surface Finishing

      Finish is applied on copper pads to enhance solderability and prevent corrosion.

      6. Testing

      Electrical tests (shorts/opens) and inspection ensure product quality before packaging and shipment.

      Here is a completed manufacturing process of IMS PCB.

      Double Sided IMS PCB Surface Finish Options

      • HASL (Lead-free): Affordable, but not ideal for fine-pitch components.
      • ENIG (Electroless Nickel Immersion Gold): Excellent flatness, long shelf life, RoHS-compliant.
      • ENEPIG: Very good solderability, corrosion resistance, durable.
      • OSP: Cost-effective and environmentally friendly, but short shelf life.
      • Immersion Silver: Good for high-frequency signals, flat and solderable.
      • Hard Gold: Very durable, typically used for connectors or edge contacts, but rarely used in IMS PCB, it is popular in FR4 PCB.

      At Best Technology, we recommend ENIG or ENEPIG for double sided IMS PCBs used in LED or power applications due to its durability and finish quality.

      Cost Factors of Double Sided IMS PCB

      The cost of a double sided IMS PCB is influenced by multiple variables, ranging from material selection to design complexity. As a manufacturer, we often find that many cost increases come from early design decisions. Here are the main cost drivers you should be aware of:

      1. Material Type

      Aluminum is more affordable and widely used, while copper offers better thermal performance but at a significantly higher price. If your project doesn’t demand extreme thermal performance, aluminum is usually the better choice from a budget perspective. High Tg costs more.

      2. Copper Weight

      Thicker copper layers allow for higher current carrying capacity and better heat dissipation, but they also increase cost:

      • Standard: 1oz (35”m)
      • Mid-range: 2oz – 3oz
      • Heavy copper: 4oz – 10oz (used in power-intensive designs)

      Heavier copper requires longer etching time and more material, which increases both processing time and price.

      3. Board Size & Shape

      Larger PCBs naturally use more material and occupy more space on the production panel. Irregular shapes also lead to more material waste and extra routing time.

      • Square or rectangular boards make better use of panel space.
      • Rounded or irregular outlines may require CNC routing or laser cutting, which adds cost.

      4. Via Count and Type

      Double sided IMS PCBs require plated through holes (PTH) to connect the two copper layers. The more vias you have, and the smaller their diameter, the more complex and expensive the drilling and plating process becomes. Via-in-pad, filled vias, and microvias are more expensive.

      5. Dielectric Layer Thickness

      Though not the focus here, it’s worth noting: if you select high-performance dielectric materials (e.g., with higher thermal conductivity or thinner thickness), the price will increase. These materials are more specialized and costlier to produce.

      6. Special Features

      Any additional processes will increase cost, such as:

      • Via-in-pad or filled vias
      • Selective plating or special coatings
      • Edge plating or beveling
      • Thermal simulations or FEA reports (optional support)

      These are usually project-specific, so it’s best to clarify during the RFQ stage.

      Best Technology – Your Reliable IMS PCB Manufacturer

      When it comes to manufacturing double sided IMS PCBs, experience, precision, and consistency matter. At Best Technology, we specialize in high-performance metal core PCBs tailored to thermal management, power conversion, and LED lighting applications.

      We offer:

      • Custom solutions using aluminum or copper base materials with various shapes
      • Precision-controlled dielectric thicknesses for consistent thermal resistance
      • Tight tolerance drilling and PTH plating for stable double-sided connections
      • Surface finishes like ENIG, ENEPIG, OSP, and lead-free HASL to match your assembly needs
      • Free DFM checks with technical support
      • 24/7 before & after sales assist
      • Professional sales can provide best solution tailored to your specific requirement
      • Transparent price and data traceability
      • High quality control followed IATF 16949
      • No MOQ required, 1 pc available

      Whether you need rapid prototypes or mass production, our engineering team supports you from design optimization to final testing. We believe that a good PCB starts with good communication—and we’re always ready to listen.

      To get an accurate and cost-effective quote, always provide the following details upfront:

      • Base material (Al or Cu)
      • Copper thickness
      • Board size and outline
      • Layer count and via design
      • Expected volume
      • Surface finish
      • Thermal performance requirements

      Send your Gerber files or RFQ to sales@bestpcbs.com to get started.

      FAQs

      Q1: What is the thermal conductivity of a double sided IMS PCB?

      It depends on the dielectric used. Standard ranges are 1.0 to 3.0 W/m·K, with higher options available for demanding designs.

      Q2: Can I place components on both sides of a double sided IMS PCB?

      Typically, one side is reserved for power routing or heat dissipation, but yes, it’s technically possible depending on the application.

      Q3: What surface finish is best for LED applications?

      ENIG is recommended for its flatness, solderability, and long shelf life.

      Q4: Are double sided IMS PCBs expensive?

      They cost more than single-sided IMS or standard FR4 PCBs, but offer much better thermal and electrical performance, especially for power-intensive designs.

      Q5: How can I get a quote from Best Technology?

      Just email your Gerber files and requirements to sales@bestpcbs.com, and we’ll respond within 24 hours.

      Posted in Uncategorized | No Comments »

      How to Choose MCPCB Dielectric Material for High-Power LEDs?

      July 24th, 2025

      How to choose MCPCB dielectric material for high-power LEDs? This guide covers material functions, types, selection criteria, and design best practices for high-power LED applications.

      Are you worried about these issues?

      • LED temperature is too high, causing accelerated light decay?
      • Uneven thickness of insulation layer causes short circuit risk?
      • Is it difficult to control the cost of small batch orders?

      Best Technology provide you with:

      • Free thermal analysis report: Dielectric layer thermal optimization plan is issued within 48 hours
      • Full process quality control: third-party test data is provided for each batch (including thermal conductivity/voltage resistance test)
      • Customized formula: adjust dielectric layer parameters according to power density (0.5-4.0W/m·K optional)

      Welcome to contact us if you have any inquiry for MCPCB: sales@bestpcbs.com.

      What Is MCPCB Dielectric Material?

      MCPCB dielectric material is a specialized insulating layer designed to efficiently conduct heat while maintaining electrical isolation between the circuit traces and the metal substrate (typically aluminum or copper) in metal-core printed circuit boards. Unlike traditional FR-4 laminates, this material exhibits significantly higher thermal conductivity (typically 1–3 W/m·K), making it essential for high-power electronic applications where heat dissipation is critical.

      The material’s composition often includes epoxy-based resins filled with ceramic particles, which enhance thermal performance and mechanical stability. It must also withstand high operating temperatures (up to 140°C) and match the thermal expansion coefficients of the adjacent layers to prevent delamination.

      What Is MCPCB Dielectric Material?

      What Are Functions of MCPCB Dielectric Materials?

      • Electrical Insulation: Prevents current leakage between conductive layers while allowing signal transmission.
      • Thermal Management: Transfers heat from components to metal core (typically aluminum/copper) with thermal conductivity up to 230 W/mK in advanced materials
      • Mechanical Support – Maintains structural integrity between metal base and circuit layers under thermal/mechanical stress.
      • Dielectric Stability – Maintains consistent dielectric constant (Dk) and low loss tangent (Df) across operating temperatures.
      • Process Compatibility – Withstands soldering temperatures (>288°C for lead-free processes) and laser drilling for via formation.
      • CTE Matching – Minimizes thermal expansion mismatch between layers to prevent delamination.
      What Are Functions of MCPCB Dielectric Materials?

      What Are Applications of MCPCB Dielectric Materials?

      Applications of MCPCB dielectric materials:

      • LED Lighting – Architectural/automotive/industrial high-power LED modules.
      • Automotive Systems – ADAS radar modules, EV battery management.
      • Power Electronics – DC-DC converters, high-current switching supplies.
      • Aerospace/Defense – Satellite RF amplifiers, extreme-temperature avionics.
      • AI/HPC Hardware – 2.5D/3D IC packaging for AI accelerators.
      • Motor Drives – Industrial VFDs, servo controller IGBT modules.
      What Are Applications of MCPCB Dielectric Materials?

      MCPCB Dielectric Material Dielectric Constant

      Material TypeDielectric Constant (Δr)
      Ceramic-filled Polymer4.0-5.0
      Epoxy Resin3.5-4.5
      Polyimide3.2-3.8
      Al₂O₃-filled Composite4.2-4.8
      AlN-filled Composite8.5-9.5
      PTFE2.0-2.1

      What Are Types of MCPCB Dielectric Material?

      1. Ceramic-filled Polymer

      • Specialty blends with ceramic particles for thermal conductivity (1.0-3.0 W/m·K).
      • Used in Bergquist IMS series for LED/automotive applications.

      2. Epoxy Resin

      • Standard dielectric material with low thermal conductivity (0.3-0.8 W/m·K).
      • Cost-effective for low-power MCPCBs.

      3. Polyimide

      • High-temperature-resistant polymer (up to 260°C).
      • Used in aerospace/defense MCPCBs requiring thermal stability.

      4. Al₂O₃-filled Composite

      • Oxide ceramic filler enhances thermal performance (3.5-5.0 W/m·K).
      • Common in Dow/Laird high-reliability products.

      5. AlN-filled Composite

      • Ultra-high thermal conductivity (170-230 W/m·K).
      • Premium option for EV battery/RF power modules.

      6. PTFE (Polytetrafluoroethylene)

      • Low-loss dielectric for high-frequency applications.
      • Used in RF/microwave MCPCB designs.

      How to Choose MCPCB Dielectric Material for High-Power LEDs?

      1. Core Performance Priorities

      Thermal Conductivity

      • Select ≄2.0 W/m·K materials (e.g., AlN composites) for LED arrays >50W/cmÂČ.
      • Avoid epoxy resins (<1.0 W/m·K) in high-power applications.
      • Verify via ASTM D5470 thermal impedance testing.

      Electrical Insulation

      • Require breakdown voltage ≄5kV and volume resistivity ≄10ÂčÂČΩ·cm.
      • Mandate UL 94 V-0 flammability certification.
      • Validate performance at 85℃/85%RH humidity.

      CTE Matching

      • Align dielectric CTE with copper (17-18ppm/℃) and aluminum (23-24ppm/℃).
      • Use Al₂O₃ (6-8ppm/℃) with buffer layers for CTE mismatch compensation.

      2. Material Selection Strategy

      Power Density <3W/cmÂČ (General Lighting)

      • Aluminum MCPCB (1.5-2.0W/m·K) with prepreg thickness 0.1-0.2mm.
      • Cost-optimized FR-4 alternative with additional heat sinks.

      Power Density 3-10W/cmÂČ (Automotive/Industrial)

      • Copper MCPCB (3.0-4.5W/m·K) + AlN dielectric layer.
      • Require vacuum lamination process with >95% void-free rate.

      Power Density >10W/cmÂČ (Laser/UV LEDs)

      • DBC ceramic substrate (AlN/BeO) with MIL-STD-883 thermal shock compliance.
      • Partner with suppliers providing original sintering curves.

      3. Supplier Evaluation Checklist

      Technical Compliance

      • Provide dielectric thickness vs. thermal resistance curves.
      • Share third-party test reports for RoHS/REACH compliance.

      Production Capability

      • Confirm brown oxidation process uses chromium-free formulas.
      • Validate line width accuracy ±10ÎŒm and solder mask 288℃ resistance.

      Cost Structure

      • Request material cost breakdown (copper 35%/dielectric 40%).
      • Negotiate copper price adjustment clauses for ±5% fluctuations.
      How to Choose MCPCB Dielectric Material for High-Power LEDs?

      High-Power LED MCPCB Design Guideline

      1. Requirement Analysis

      • Define LED power density (W/cmÂČ), operating voltage, and thermal budget.
      • Identify environmental factors: ambient temperature, humidity, vibration levels.
      • Set cost targets: balance material quality with production volume.

      2. Material Selection Strategy

      • Low Power (<3W/cmÂČ): Aluminum MCPCB with 1.5-2.0W/m·K dielectric.
      • Medium Power (3-10W/cmÂČ): Copper MCPCB + AlN dielectric layer.
      • High Power (>10W/cmÂČ): DBC ceramic substrate (AlN/BeO).

      3. Layout Optimization

      • Place LEDs in matrix pattern with ≄2mm spacing between high-power components.
      • Use dedicated traces for power/ground (≄1mm width for >2A currents).
      • Avoid sharp angles in copper traces to prevent hotspots.

      4. Thermal Management

      • Implement thermal vias under LED pads (diameter ≄0.5mm, pitch ≀1.5mm).
      • Use graphite sheets for lateral heat spreading in compact designs.
      • Validate thermal performance with IR camera testing.

      5. Prototype Validation

      • Conduct 72-hour burn-in test at 85℃ ambient temperature.
      • Measure junction temperature using thermal couples or IR thermography.
      • Verify insulation resistance after 168hrs at 85%RH humidity.

      6. Production Readiness

      • Require suppliers to provide PPAP documentation for critical materials.
      • Implement SPC for dielectric layer thickness (±10% tolerance).
      • Use AOI systems for solder paste inspection and component alignment.

      Why Choose Best Technology as MCPCB Manufacturer?

      Reasons why choose us as your MCPCB manufacturer:

      • High-Quality Dielectric Material Solution – Provides a high-performance insulating layer with a thermal conductivity of 2.8W/m·K, which improves the heat dissipation efficiency by 40% compared to conventional materials.
      • 24-Hour Rapid Prototyping Service – Accelerates product development cycle, reducing time-to-market by 30% compared to industry standards.
      • Fast Lead Times (7-15 days for bulk orders) – Shorten production cycles by 30% compared to competitors.
      • 18+ Years Industry Expertise- Provides free DFM analysis to optimize designs for cost and performance.
      • Competitive Pricing with No Hidden Fees – Delivers 15–20% cost savings compared to European suppliers.
      • No-MOQ Flexibility – Start with small batches to test markets before scaling up.
      • Global Logistics Support – Hassle-free shipping to 50+ countries with customs expertise.
      • One-Stop Solution – From PCB design to assembly, reduce supplier management complexity.
      • 24/7 Technical Support – Engineers on standby to resolve issues within 4 hours.
      • Long-Term Partnership Pricing – Volume discounts and flexible payment terms for repeat clients.

      By integrating rapid response with professional technical services, we help customers achieve the core value of reducing R&D cycle by 50%+ and improving mass production yield to 99%, please feel free to contact Best Technology if you have any request for MCPCB: sales@bestpcbs.com.

      Tags: ,
      Posted in best pcb, bestpcb, mcpcb, Metal Core PCB | No Comments »

      IMS PCB Technology, IMS Circuit Board Manufacturer

      July 24th, 2025

      What is IMS PCB technology? This guide covers its definition, benefits material options like aluminum substrates, applications, design rules, manufacturing processes, and future innovations.

      Are you bothered by these problems?

      • Is your product frequently downtime due to insufficient heat dissipation?
      • Are you in a dilemma between material cost and heat dissipation performance?
      • Does space limitation limit your PCB design flexibility?

      Best Technology can provide:

      • Our IMS PCB uses a high thermal conductivity aluminum substrate, which reduces thermal resistance by 50% to ensure continuous and stable operation.
      • Optimize the metal substrate process, reduce costs by 20%, increase heat dissipation efficiency by 30%, and achieve the best cost performance.
      • Support customized multi-layer metal substrates, compatible with high-density wiring, and adapt to compact space requirements.

      Welcome to contact us if you have any request for IMS PCB: sales@bestpcbs.com.

      What Is IMS PCB Technology?

      IMS (Insulated Metal Substrate) PCB technology integrates a metal core, typically aluminum or copper with a thermally conductive dielectric layer and copper circuitry, creating a “metal-backed heat sink” for electronic components. Unlike traditional FR4 boards prone to overheating, IMS PCBs rapidly dissipate heat from high-power components (like LEDs, power converters, or 5G amplifiers), boosting device lifespan by up to 40% while preventing thermal failure. This makes them essential for demanding applications in automotive lighting, renewable energy systems, and medical devices, where efficient heat management ensures reliability, compact designs, and safety compliance.

      What Is IMS PCB Technology?

      What Are Advantages of IMS PCB Technology?

      Benefits of IMS PCB Technology

      • Superior Heat Dissipation – Aluminum cores efficiently transfer heat away from high-power components (e.g., LEDs, power modules), reducing thermal stress and extending lifespan. Ideal for applications like automotive lighting and industrial power electronics.
      • Enhanced Durability – Metal substrates provide mechanical strength, resisting vibration and shock—critical for rugged environments (e.g., aerospace, automotive).
      • Compact & Lightweight Design – Enables slimmer, lighter products without compromising performance, benefiting portable electronics and space-constrained systems.
      • High Electrical Insulation – Prevents short circuits even under high voltage, ensuring safety in power-sensitive applications.
      • Cost-Effective Longevity – Reduced cooling requirements (e.g., fewer heat sinks) lower overall system costs while improving reliability.
      What Are Advantages of IMS PCB Technology?

      What Are Applications of IMS PCB Technology?

      Applications of IMS PCB Technology

      • LED Lighting: High-power LED systems (e.g., streetlights, headlights) for heat dissipation and durability.
      • Automotive: Engine controls, EV battery management, and power modules for thermal/vibration resistance.
      • Power Electronics: Inverters, converters, and motor drives for compact, high-temperature performance.
      • Consumer Electronics: Adapters, chargers, and gaming devices to prevent overheating.
      • Industrial: Factory automation, robotics, and solar inverters for extreme-condition reliability.
      What Are Applications of IMS PCB Technology?

      What Are Substrate Material Types of IMS PCB?

      Aluminum (AL) Substrates

      • Most common, cost-effective, and lightweight.
      • Thermal conductivity: 1–4 W/m·K (standard) to 10–15 W/m·K (premium grades).
      • Best for: LED lighting, power supplies, and automotive electronics.

      Copper (Cu) Substrates

      • Higher thermal conductivity (up to 400 W/m·K).
      • More expensive but ideal for ultra-high-power applications (e.g., EV inverters, high-density power modules).

      Steel Substrates

      • Lower cost, but heavier and less thermally conductive (≈ 1–2 W/m·K).
      • Used in: Industrial control boards where cost outweighs strict thermal needs.

      Ceramic Substrates (Alumina, AlN, BeO, SiN)

      • Ultra-high thermal conductivity (AlN: 80–200 W/m·K).
      • Brittle and expensive, but critical for aerospace, high-frequency RF, and high-power electronics.

      Composite Substrates (e.g., Al+FR4 Hybrid)

      • Combines metal core with FR4 layers for mixed-signal designs.
      • Balances cost and thermal management in complex PCBs.

        Choosing the Right Substrate:

        • For cost & general use: Aluminum.
        • For extreme heat dissipation: Copper or ceramics.
        • For rugged environments: Steel or hybrid composites.

        IMS PCB Design Guidelines

        Insulated Metal Substrate PCB Design Guidelines:

        1. Material Selection

        • Base Metal: Aluminum (1060, 5052, 6061) or copper, thickness 0.5–3.0 mm.
        • Dielectric Layer: Epoxy resin with inorganic fillers (75–150 ”m), thermal conductivity 8–12× FR4.
        • Copper Foil: 1–5 oz (35–140 ”m), surface finishes: HASL, ENIG, OSP..

        2. Layer Stackup

        • Single-Sided: Metal base → dielectric → copper circuit.
        • Double-Sided Hybrid: FR4 core + thermal vias for heat dissipation.
        • Multi-Layer: Metal-core layers interleaved with FR4 for complex routing.
        • Thermal Vias: Array of vias (≄0.3 mm dia) to conduct heat to the metal base.

        3. Thermal Management

        • Thermal Resistance: IMS PCBs achieve 100× lower thermal resistance than FR4 (e.g., 0.15 mm dielectric vs. 1.6 mm FR4).
        • Heat Dissipation: Prioritize component placement near the metal base; use thermal vias for high-power devices.
        • Simulation: Validate thermal performance using ANSYS.

        4. Electrical Performance

        High-Speed Design:

        • Use stripline for signals >15 Gbps; microstrip for <15 Gbps.
        • Impedance control: 50Ω (single-ended), 100Ω (differential).
        • Dielectric material: Rogers 4350B (Dk=3.48, Df=0.0037) for frequencies >5 GHz.
        • Power Integrity: Dedicate power/ground layers; minimize via stubs in high-speed traces.

        5. Manufacturing Considerations

        Minimum Features:

        • Line/space: 0.075 mm (1 oz Cu) to 0.275 mm (5 oz Cu).
        • Drill size: Mechanical ≄0.3 mm, laser ≄0.1 mm.
        • Tolerance: Layer thickness ±8%, line width/spacing ±20%.
        • Surface Finish: ENIG for fine-pitch components; HASL for cost sensitivity.

        6. Reliability & Testing

        • Thermal Cycling: -40°C to 125°C, 1,000 cycles with <5% delamination.
        • Insulation Resistance: >100 MΩ at 500V DC.
        • Dielectric Withstanding: AC 1,000V/1 min no breakdown.

        7. Application-Specific Tips

        • LED Lighting: Place LEDs directly on the metal base; use thick copper (3–5 oz) for current paths.
        • Automotive/Aerospace: Prioritize CTE matching between dielectric and metal base to avoid thermal stress.

        8. Design Rules Summary

        ParameterRecommendation
        Dielectric Thickness75–150 ”m
        Copper Weight1–5 oz (35–140 ”m)
        Thermal ViasArray density ≄10 vias/cmÂČ
        Minimum Trace/Space0.075 mm (1 oz Cu)
        Impedance Control±10% tolerance

        IMS Circuit Board Manufacturing Processes

        IMS PCB Manufacturing Processes

        1. Material Preparation

        • Base Metal: Aluminum (1060, 5052, 6061) or copper sheets (0.5–3.0 mm thickness), pre-laminated with copper foil (1–5 oz).
        • Dielectric Layer: Ceramic/boron-filled epoxy resin (75–150 ”m), thermal conductivity 8–12× FR4.
        • Pre-Treatment: Clean metal surface, apply photoresist, and expose to UV light for pattern hardening.

        2. Layer Stackup & Imaging

        • Lamination: Stack prepreg (epoxy-coated glass fiber), base material, and copper foil. Press at 150–200°C under 3–5 MPa.
        • Outer Layer Imaging: Use transparent film masks and UV exposure to define copper traces. Develop unexposed areas with alkaline solutions.

        3. Etching & Drilling

        • Chemical Etching: Remove unprotected copper using ammonium persulfate or ferric chloride. Control etch time for inner layer precision.
        • Precision Drilling: CNC-controlled drilling (≄0.1 mm diameter, 150,000 RPM). X-ray alignment for through-holes and microvias.

        4. Plating & Surface Finish

        • Electroless Copper: Deposit 1 ”m copper on hole walls for interlayer conductivity.
        • Electroplating: Thicken copper to target weight (e.g., 35 ”m) and apply tin shielding.
        • Surface Treatment: ENIG (electroless nickel/immersion gold), OSP (organic solderability preservative), or HASL (hot air solder leveling).

        5. Thermal Management & Testing

        • Thermal Cycling: -40°C to 125°C for 1,000 cycles. Insulation resistance >100 MΩ at 500V DC.
        • Dielectric Testing: AC 1,000V/1 min without breakdown.
        • AOI (Automated Optical Inspection): Verify trace/space accuracy (±20% tolerance) and defect detection.

        6. Final Fabrication & QA

        • CNC Routing: Shape boards with ±0.1 mm tolerance.
        • Silkscreen: Print identifiers, warnings, and component labels.
        • Packaging: Vacuum-seal with desiccant; include CoC (Certificate of Conformance) and material certs (e.g., UL 94V-0).

        Why Choose Best Technology as IMS Circuit Board Manufacturer?

        Reasons why choose Best Technology as IMS circuit board manufacturer:

        • Proven Thermal Expertise – Engineered for high-power applications with optimized heat dissipation.
        • Tight Tolerances (±0.05mm) – Precision manufacturing for demanding designs.
        • Fast Turnaround (24 hours Prototype, 5-7 days Production) – Accelerated timelines without quality compromise.
        • Turnkey Solutions – Full-service PCB manufacturing from design to delivery, accelerating your product’s time-to-market.
        • ISO 14001/ISO 13485 certification: medical/automotive customers are exempt from secondary testing, and compliance costs are reduced by 30%
        • Cost-Effective Solutions – Bulk discounts and material optimization reduce PCB costs.
        • Hybrid PCB Capabilities – Seamless IMS-FR4 integration for complex layouts.
        • ROHS/REACH Compliance – Eco-friendly materials for global market access.
        • Custom Dielectric Formulations – Tailored thermal conductivity (1.5–5.0 W/m·K).
        Why Choose Best Technology as IMS Circuit Board Manufacturer?

        Welcome to contact us if you have any request for IMS PCB: sales@bestpcbs.com.

        Future IMS PCB Technology Trends

        Advanced Thermal Materials‌

        • Use of ‌high-thermal-conductivity ceramics‌ (e.g., AlN, BeO) for extreme heat dissipation.
        • Development of ‌flexible IMS substrates‌ with better thermal performance.

        Miniaturization & High-Density Interconnects‌

        • Microvias‌ and ‌HDI technology‌ for compact designs in automotive/5G applications.
        • Embedded components‌ (resistors, capacitors) to reduce footprint.

        Automotive & EV Focus‌

        • High-power IMS PCBs‌ for ‌inverters, battery management, and motor drives‌.
        • AEC-Q200 compliance‌ for reliability in harsh environments.

        Integration with AI & IoT‌

        • Smart PCBs‌ with embedded sensors for real-time thermal monitoring.
        • AI-driven design optimization‌ for thermal efficiency.

        Sustainable Manufacturing‌

        • Lead-free, halogen-free materials‌ to meet RoHS/REACH standards.
        • Recyclable metal cores‌ (Al, Cu) for eco-friendly production.

        High-Frequency & High-Speed Applications‌

        • Low-Dk dielectric materials‌ for 5G/mmWave RF applications.
        • EMI shielding integration‌ to minimize signal interference.

        Conclusion
        IMS PCB technology delivers unmatched thermal performance (up to 12x better than FR4) and structural innovation (3-layer design), making it ideal for high-power LED, automotive, and industrial applications. With materials ranging from aluminum to hybrid substrates, the industry is advancing toward higher thermal conductivity (19W/mK+). Best Technology combines precision (±0.05mm tolerance) with rapid prototyping (24-hour turnaround) to provide reliable solutions. Contact our engineers today for a custom quote and expert support: sales@bestpcbs.com.

        Tags: ,
        Posted in best pcb, bestpcb, mcpcb, Metal Core PCB | No Comments »

        Aluminium Metal Core PCB​, China Aluminium Core PCB Factory​

        July 24th, 2025

        Aluminium core PCB is a printed circuit board that uses aluminum as its base layer. It’s designed to transfer heat away from components quickly, keeping devices cool and stable. This makes it ideal for high-power applications like LED lighting, automotive systems, and power electronics.

        Aluminium Metal Core PCB​, China Aluminium Core PCB Factory​

        What is metal core pcb?

        Metal core PCB, often called MCPCB, uses a metal base instead of the traditional FR4 or epoxy glass. This base is usually aluminium, copper, or a mix of both. Among them, aluminium metal core PCBs are by far the most popular due to their balance of performance, weight, and cost.

        This core serves as the backbone of the PCB, offering strong thermal conductivity, mechanical support, and efficient heat dissipation. These properties make it ideal for high-power circuits where temperature control is critical.

        Why use a metal core PCB?

        Electronic components, especially high-power LEDs and MOSFETs, generate heat. If that heat stays trapped, it kills performance and shortens lifespan.

        Metal core PCB fights this issue head-on. Its design allows heat to transfer quickly from the circuit layer to the metal base, keeping components cool and stable. That means fewer failures, longer device life, and lower maintenance.

        They’re not just about heat. MCPCBs also improve structural strength, reduce size, and support higher component density. All these benefits combined make them a go-to for industries like automotive, telecommunication, aerospace, and medical devices.

        What are the pros and cons of aluminum PCB?

        Every material has its strengths and weaknesses. But in the case of aluminium PCBs, the pros are far more impressive than the cons.

        Advantages:

        • Excellent Thermal Management: Aluminium pulls heat away from hot components, preventing damage.
        • Lightweight Yet Strong: Compared to copper, aluminium offers solid durability at a lower weight.
        • Cost-Effective: It’s more affordable than copper but delivers reliable thermal conductivity.
        • Eco-Friendly: Aluminium is recyclable and non-toxic, helping meet sustainability goals.
        • Improved Dimensional Stability: The structure remains stable even under changing temperatures.
        Aluminium Metal Core PCB​, China Aluminium Core PCB Factory​

        Disadvantages (Very Few):

        • Slightly less flexible than FR4 in design.
        • Electrical insulation must be carefully managed to avoid short circuits.

        Still, for most applications, these drawbacks are easily handled by professional manufacturers.

        What does aluminum core mean?

        Aluminum core PCB refers to a circuit board with three main layers:

        • Copper Circuit Laye: This is where your electronic components sit.
        • Dielectric Layer: An insulating layer that transfers heat to the core while isolating electricity.
        • Aluminium Base Layer: A thick base of aluminium that provides strength and heat sinking.

        This core turns a standard PCB into a high-performance solution, especially for high-current and high-heat devices.

        Why choose an aluminum core PCB?

        There are many reasons to choose aluminum core PCB instead of traditional PCB. Its core advantages go far beyond temperature control. Here’s why they shine:

        • Superior Heat Dissipation: Keep components safe even in the most demanding power applications.
        • Durable Construction: Withstands mechanical stress and harsh environments.
        • Compact Design: Allows for smaller, thinner devices without sacrificing reliability.
        • Better Reliability: Lowers the risk of overheating, which often causes circuit failure.
        • Improved Energy Efficiency: Less heat means less energy wasted, which is a win in power-sensitive applications.
        • Great for LED Applications: Aluminium PCBs have become the backbone of LED lights due to their excellent thermal properties.
        Aluminium Metal Core PCB​, China Aluminium Core PCB Factory​

        If your end product needs to perform well under pressure, aluminium core PCBs are a rock-solid choice.

        How is aluminium PCB made?

        The aluminium PCB manufacturing process is both precise and efficient. Here is a brief process of the aluminum substrate PCB factory:

        • Raw Material Preparation – Aluminium base is selected, cleaned, and pre-treated for bonding.
        • Dielectric Layer Application – An insulating, thermally conductive layer is laminated onto the aluminium.
        • Copper Cladding – A copper sheet is bonded on top of the dielectric.
        • Image Transfer – Circuit patterns are printed and developed on the copper layer.
        • Etching – Unwanted copper is removed, leaving the circuit behind.
        • Solder Mask and Silkscreen – Protective coatings and labels are added.
        • Surface Finish – Finishing like ENIG, HASL, or OSP is applied to improve solderability.
        • Testing – Electrical and visual inspections are done to ensure perfection.

        BEST Technology’s modern factory uses automated production lines and strict quality control to produce high-reliability circuit boards at competitive aluminum plate prices.

        How does PCB stackup affect heat?

        The layer structure of a PCB controls how well it dissipates heat and shields signals. For aluminium metal core PCBs, the stackup typically follows this pattern:

        • Copper layer on top for components
        • Thin dielectric for thermal transfer
        • Thick aluminium base for heat sinking

        This simplified layout boosts thermal flow. By reducing the thermal resistance between heat-generating components and the aluminium base, the heat escapes more efficiently.

        A good PCB stackup design ensures low heat buildup, better EMI performance, and long-term reliability.

        What is the difference between aluminum PCB and FR4?

        FR4 PCBs use fiberglass-reinforced epoxy as the core. They’re cheap, widely used, and fine for low-power electronics. But they trap heat. When used in high-power circuits, the temperature rise can damage components.

        Aluminum PCBs, on the other hand, replace the FR4 core with a metal core. This major change improves:

        • Heat transfer
        • Mechanical strength
        • Lifespan
        • Power capacity
        Aluminium Metal Core PCB​, China Aluminium Core PCB Factory​

        Also, FR4 lacks the ability to dissipate heat efficiently, while aluminium PCBs can handle up to 10× better thermal flow. That’s why they dominate in LED lighting, automotive modules, and industrial drives.

        What’s the thermal conductivity of aluminium core PCB?

        The thermal conductivity of an aluminium core PCB depends on the dielectric layer and aluminium grade, but it usually ranges between 1.0 W/mK to 3.0 W/mK. Some high-end materials can reach up to 5.0 W/mK.

        By comparison, FR4’s thermal conductivity is just 0.25 W/mK. That makes aluminium core PCBs around 4 to 20 times more effective at transferring heat.

        Conclusion:

        Aluminium core PCBs offer powerful thermal management, high durability, and compact design, making them ideal for modern electronics like LED lighting, power supplies, and automotive systems. Compared to traditional FR4 boards, they handle heat far more efficiently, ensuring longer device life and better performance.

        Need a reliable aluminium core PCB manufacturer? Contact us at sales@bestpcbs.com

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        Posted in FAQ, FR4 PCB, mcpcb, Metal Core PCB | No Comments »

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