Heavy Copper PCBs

Engineers and designers working with power electronics are benefiting from the growing trend for Heavy and Extreme Heavy Copper PCBs.

Heavy Copper: 5 oz, 175µm, 0.175mm and above

Extreme Heavy Copper: 15 oz, 525µm, 0.525mm and above

These PCBs are becoming increasingly necessary as more industrial applications call for more robust circuitry for high power.

Heavy Copper and Extreme Heavy Copper PCBs offer benefits such as:

• Enhanced endurance to thermal stress.
• Greater current capacity.
• Increased mechanical strength in PTH holes and at connector locations
• Utilisation of exotic materials such as high temperature substrates, without any circuit failures.
• By placing several copper weights on the same outer layer, the product size was reduced.
• Using up to 120-oz copper planes, on-board heatsinks are directly plated onto the board surface.
• On-board high-power-density planar transformers possible.
• Heavy copper-plated vias help transport heat to an external heatsink and carry a larger current through the board.
• Once an NDA is signed, we will share our design and manufacturing guidelines. For heavy copper technology, we can provide advice on track and gap spacing, current-carrying details, and best practise standards.