# Embedded Copper Coin PCB Supplier| EBest Circuit (Best Technology)

_Published: 2025-08-19_

Table of Contents

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- What is Embedded Copper Coin PCB?
- Structure of Embedded Copper Coin PCB
- Advantages of Copper Coin-Embedded PCB
- Applications of Embedded Copper Coin PCB
- How is the Copper Coin Connected to the PCB?
- How to Design A Embedded Copper Coin PCB?
- What is the Process of Embedded Copper Coin PCB?
- Why Choose EBest Circuit (Best Technology) as Embedded Copper Coin PCB Supplier?

What is **[embedded copper coin PCB](https://www.bestpcbs.com/blog/2025/08/embedded-copper-coin-pcb-supplier-best-technology/)**? Let’s explore its structure, benefits, applications, connector methods, design guide, production processes together.

**Are you troubled with these problems?**

- Is your product throttled by poor heat dissipation?
- Are traditional cooling solutions squeezing your design space?
- Is your PCB frequently experiencing thermal failures under complex operating conditions?

**EBest Circuit (Best Technology) can offer services and solutions:**

- Customized thermal design: ANSYS simulation and field verification.
- Flexible manufacturing services: 0.2-2.0mm copper coin options.
- Full-process quality control: 16 critical process checks for reliability.

**Welcome to contact us if you have any inquiry for [embedded copper coin PCB](https://www.bestpcbs.com/blog/2025/08/embedded-copper-coin-pcb-supplier-best-technology/)**: **[sales@bestpcbs.com](mailto:sales@bestpcbs.com).**

## What is Embedded Copper Coin PCB?

**[Embedded Copper Coin PCB](https://www.bestpcbs.com/blog/2025/08/embedded-copper-coin-pcb-supplier-best-technology/)** (Embedded Copper Coin) is an innovative technology that improves heat dissipation by embedding copper sheets (called “copper coins”) within printed circuit boards (PCBs). These copper coins, typically in a circular or rectangular stepped design, efficiently absorb and dissipate heat generated by electronic components, making them particularly suitable for high-power devices or miniaturized products (such as 5G communications equipment and space electronics).

This technology leverages copper’s high thermal conductivity to mount heat-generating components directly on the copper coins, significantly overcoming the limitations of traditional PCB heat dissipation vias or metal substrates, achieving more compact and efficient heat dissipation.

[https://www.bestpcbs.com/blog/wp-content/uploads/2025/08/main-26.jpg](https://www.bestpcbs.com/blog/wp-content/uploads/2025/08/main-26.jpg)

## Structure of Embedded Copper Coin PCB

**1. Copper Coin Body**

- Material: ≥99.9% pure copper, 0.5–3mm thick, 5–20mm diameter, nickel-plated.
- Design: Stepped profile expands heat contact; fits round/rectangular chips.

**2. Embedding** **Process**

- Process: Laser/mechanical insertion into PCB layers, FR-4 bonded, resin-filled for flatness.
- Tolerance: Adhesive residue ≤0.1mm to prevent via cracks.

**3. Conductive Interconnects**

- Vias: Metallized, copper-plated ≥25µm for low impedance.
- Clearance: ≥0.2mm between layers (3kV AC safe).

**4. Insulation & Protection**

- Solder Mask: ≥15µm edge coverage.
- Vias: Resin-filled to reduce thermal stress.

**5. Thermal Management**

- Path: Thermal adhesive/aluminum substrate beneath coin for vertical cooling.
- Stacked Design: Simulation-optimized heat flow.

## Advantages of Copper Coin-Embedded PCB

- Highly Efficient Heat Dissipation: Copper exhibits excellent thermal conductivity and is embedded directly beneath heat-generating components to quickly dissipate heat and prevent overheating damage (such as power ICs or automotive-grade chips).
- Saves PCB Space: No additional heat sink or complex air cooling systems are required, making it suitable for compact designs (such as drones and portable devices).
- Improves Long-Term Reliability: Copper and PCB materials have similar coefficients of thermal expansion, reducing the risk of solder joint cracking and extending product life.
- Lowers Overall Cost: The process is simpler than embedded copper coins, reducing production steps and material waste.
- Supports Custom Design: Round and rectangular copper coins can flexibly adapt to different component shapes (such as special-shaped chips) to optimize heat conduction paths.

[https://www.bestpcbs.com/blog/wp-content/uploads/2025/08/1-22.png](https://www.bestpcbs.com/blog/wp-content/uploads/2025/08/1-22.png)

## Applications of Embedded Copper Coin PCB

- High-Power LED Lighting Cooling
- RF/Microwave Power Amplifiers
- New Energy Vehicle Power Systems
- Industrial Power Equipment
- Aerospace Electronics Systems
- Server Power Modules
- Power Electronics Converters
- High-density packaged device cooling
- Automated test equipment (ATE)
- Audio power amplifiers

## How is the Copper Coin Connected to the PCB?

**Metallized Via Direct Connection**

- Copper coins connect to PCB inner layers via laser-drilled microvias (aperture ≥0.3mm), with copper plating thickness ≥25µm on via walls, ensuring low-impedance conduction (