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Copper IMS PCB Design & Manufacturer, Fast Delivery
Friday, 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.

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