Millennium Circuits Offers its Coin Insertion Technology as a PCB Thermal Solution

https://cdn.pcbdirectory.com/news/MCL_wide_639081266421145720.webp712370

Millennium Circuits Limited (MCL) specializes in PCB technologies that address the challenges of high-power and high-heat electronic designs. One such solution is its Coin Insertion Technology, an effective approach to PCB thermal management developed to help prevent overheating and improve long-term reliability.

Coin Insertion Technology: An Effective PCB Thermal Solution

As power densities increase, thermal management has become a critical factor in PCB design. Conventional heat dissipation methods, such as thermal vias, are often limited by the relatively poor thermal conductivity of standard PCB materials. To overcome this limitation, MCL offers embedded copper coin technology, which integrates high-thermal-conductivity copper directly into the PCB structure.

Copper is an excellent conductor of heat, making it ideal for transferring thermal energy away from high-power components. By embedding a copper coin directly beneath heat-generating devices, excess heat can be efficiently absorbed and spread away from sensitive areas of the PCB.

Types of Embedded Copper Coins

MCL’s coin insertion technology supports multiple coin geometries to suit different design requirements:

• Embedded T-Coins
• Embedded I-Coins
• Embedded C-Coins

Each coin type is selected based on the available space and the thermal profile of the component. Choosing the correct shape is essential, as improper design can damage the PCB groove, the coin itself, or compromise manufacturing yield and reliability.

Once the appropriate coin shape is selected, the copper coin is embedded into a routed slot within the PCB. After lamination, the coin is metalized, creating a tight mechanical and electrical bond between the PCB and the copper insert. The electrical connection is achieved through copper plating, resulting in a highly efficient thermal path and superior heat dissipation performance.

MCL refers to this process as embedding, rather than burying, the copper coin. In buried coin methods, the coin is placed into a pre-milled groove during pressing and connected only through lamination. While embedding requires greater process expertise, it offers faster production, lower cost, and significantly better thermal performance when executed correctly by experienced engineers.

Designed for Performance and Reliability

Successful coin insertion depends on precise engineering and manufacturing control. MCL’s expertise ensures proper coin shaping, accurate placement, and reliable metallization, minimizing waste and avoiding common failure modes associated with poorly executed embedded coin designs.

PCB Thermal Management with MCL

Millennium Circuits Limited provides a full range of PCB solutions, including designs incorporating embedded copper T-Coins, I-Coins, and C-Coins for enhanced thermal performance. From small prototype runs to high-volume production, MCL supports customers across the globe with consistent quality and proven manufacturing processes.

For designers working on high-power, high-heat applications, MCL’s coin insertion technology offers a robust and efficient thermal management solution. By integrating copper directly into the PCB, MCL helps ensure reliable performance, improved heat dissipation, and longer product lifecycles.

Click here to learn more about coin insertion technology from Millennium Circuits.