Heavy Copper PCBs

Heavy Copper Circuits for High Power Applications

An increasing number of power electronics products are taking advantage of a growing trend in the printed circuit board industry.

PCBs with 3oz or more of finished copper in the inner and/or outer layers are defined as Heavy Copper. Our manufacturing facilities allow Heavy Copper boards to be produced up to 32 layers.

We also have the capability for Extreme Heavy Copper - up to 30oz per layer for 2 layer applications.

Heavy Copper and Extreme Heavy Copper PCB's offer benefits such as:

• Increased endurance to thermal strains.
• Higher current carrying capacity.
• Increased mechanical strength at connector sites and in PTH holes.
• Use of exotic materials to their full potential (i.e., high temperature) without circuit failure.
• Reduced product size by incorporating multiple copper weights on the same layer of circuitry
• Heavy copper plated vias carry higher current through the board and help to transfer heat to an external heatsink.
• On-board heatsinks directly plated onto the board surface using up to 120-oz copper planes.
• On-board high-power-density planar transformers

TCL Elektronika can help you with design procedures for Heavy Copper. We can offer track and gap spacing guidance, current carrying details and best practice guidelines for heavy copper circuits.

Please contact us for further assistance.