Copper Coin PCB Manufacturing

Copper thermal conductivity up to 400 W/m·K | Embedded & Buried coin | T-shape concurrent design

Types of Copper Coin PCB

Embedded copper coin is the most effective way to solve extreme heat-dissipation problems in high-power PCBs.

Embedded Copper Coin PCB

Coin makes direct contact with the inner copper layer and air, transferring heat quickly — the most effective solution for high-power components.

Buried Copper Coin PCB

Coin is pressed and connected, laminated in prepreg. Lower processing cost with broad application prospect.

Concurrent Design — T-shape Coin

A “T” shaped coin solves small-pad limitations, keeping the coin dimension minimal while contacting a pad smaller than the minimum coin size.

Extreme Thermal Conductivity

Copper offers upwards of 400 W/m·K — 30 to 200 times better thermal conduction than any conductive dielectric prepreg.

Copper Coin PCB — How It Works

The copper coin is inserted into a premade cutout under the hot spot and transfers heat directly to the heatsink through the stack-up. Key process points:

Direct heat-sink link

The coin sits right under the hot spot and transfers heat directly to the heatsink through the PCB stack-up.

Beats thermal vias

Traditional thermal vias cannot meet high-power needs; embedded copper coin far outperforms them for heat removal.

Embedded vs buried

Designers choose the type: embedding is complex but rapid and cost-effective with greater dissipation; burying is simpler and reliable.

Strict process control

Coin shape and dimension accuracy are critical — a poorly shaped coin damages the groove wall and hurts reliability.

Why Choose Us?

Extreme thermal management — Embedded copper coin is the most effective way to solve extreme heat-dissipation problems in high-power boards.

Embedded & buried both — We support both embedded and buried copper coin builds per your thermal and cost targets.

T-shape / concurrent design — “T” shaped coins for small-pad areas, minimizing board space while meeting thermal needs.

One-stop PCB + assembly — PCB fabrication and PCBA from one source; send Gerber + BOM to sales@andwinpcb.com for a quote.

Full certification — ISO 9001, IATF 16949, UL recognized and RoHS compliant processes.

Applications

LED Lighting

Brightening LED applications where bare-board-level heat transfer is essential.

High-Power Transmitters

High power transmitters needing rapid, localized heat removal.

High-Voltage Power Supplies

High voltage power supplies with thermally stressed components.

High-Grade Electronics

High-grade electronic devices requiring greater heat-dissipation performance.

Frequently Asked Questions

1. What is a copper coin PCB?

A copper coin PCB embeds a solid piece of high-conductivity copper into a cutout in the board, directly under the heat-generating component. The coin acts as a built-in heat sink, transferring heat straight to the external heatsink through the stack-up — far more effective than thermal vias.

2. What is the difference between embedded and buried copper coin?

An embedded coin makes direct contact with the inner copper layer and air for the fastest heat transfer (widely used for high-power parts). A buried coin is pressed and laminated in prepreg — lower processing cost and broad application, though slightly less effective for conduction. The designer picks the type per requirement.

3. How thermally conductive is the copper coin?

Copper offers upwards of 400 W/m·K thermal conductivity — about 30 to 200 times better than a conductive dielectric prepreg, which is why it solves extreme heat-dissipation problems so well.

4. Can you handle small-pad or tight-space designs?

Yes. The concurrent (T-shape) design uses a “T” shaped coin to solve small-pad limitations, keeping the coin dimension minimal while still contacting a pad smaller than the minimum coin size — good flexibility with minimal board space.

5. What is the lead time and minimum order quantity (MOQ)?

Lead time and MOQ depend on coin type (embedded/buried), layer count, shape accuracy and order volume. Send your Gerber, stack-up and thermal requirements to our sales team for an exact quote and schedule — we support prototypes and volume production.