Copper Coin PCBs

Copper Coin Technology

Copper Coin Technology for Advanced Thermal Management in PCBs

At Daleba, we offer cutting-edge Copper Coin technology to optimise thermal management in PCBs. Copper, with its exceptional thermal conductivity exceeding 400 W/mK, is one of the most effective materials for controlling heat while maintaining both electrical and thermal conductivity.

Solid Copper CoinSolid Copper Coin
Cross Section of Copper CoinCross Section of Copper Coin

What is Copper Coin Technology?

A copper coin is a solid piece of copper integrated into the PCB, typically positioned directly beneath heat-generating components. This strategic placement significantly enhances heat dissipation compared to traditional thermal via arrays, delivering nearly double the cooling efficiency.

In addition to superior heat management, copper coins can establish direct contact between the heat-generating component pad and the heat sink, eliminating the need for less effective thermally conductive materials. Copper's thermal conductivity outperforms conventional conductive dielectric prepregs by 50 to 200 times, making it the ideal solution for targeted cooling.

Optimal Application and Versatility

Copper Coin technology excels in PCBs with localized heat sources, especially when one or a few components generate the majority of the heat. Regardless of the PCB's layer count, copper coins provide unparalleled localised heat transfer, making them the go-to solution for demanding thermal management challenges.

Heavy Copper Planar Transformer
Heavy Copper Planar Transformer
12 layer 6oz per layer 4mm thick heavy copper
Heavy Copper Planar Transformer
Heavy Copper Planar Transformer
12 layer 6oz per layer 4mm thick heavy copper

Manufacturing Excellence at Daleba

When manufacturing Copper Coin PCBs, Daleba utilises high-purity, electrical-grade C103 copper. This grade is chosen for its superior electrical conductivity and resistance to hydrogen embrittlement, ensuring both reliability and performance.

The copper coin can be embedded through the entire board, exposing it on both sides, or inserted from one side, depending on design requirements. This flexibility allows the copper coin to efficiently dissipate high levels of heat from components mounted above or below it.

Seamless Integration with Other Technologies

Depending on individual requirements, our Copper Coin technology can be combined with other solutions, such as copper-filled vias, to tackle even the most complex board designs. By integrating these technologies, we can deliver tailored solutions that meet the highest standards of thermal performance.

10 Layer Rigid FlexCopper filled blind vias
Cross Section of Copper Filled Vias

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