Heavy Copper PCB or calls Power Supply PCB is manufactured with copper weights anywhere between 3-20oz/ft2, Copper weights above 20oz/ft2 are also possible and are referred to as extreme copper. the increased copper weight combined with a suitable substrate and thicker plating for the through holes transforms the once unreliable,weak PCB into a durable and reliable wiring platform. Now various power electronics products are being designed every days for a range of applications: such as Power line monitors, High power rectifiers, planar transformers, and power convertors,etc.

Heavy copper PCB used for High power and high current circuits and their control circuits were designed or produced separately on separate PCB. Heavy Copper PCB makes it possible to integrate high current circuits and control circuits to realize a highly dense, in a simple board structure,also the advantages include reduced layer count,low impedance power distribution,smaller footprints and potential cost savings.The features of Heavy Copper PCB can be seamlessly connected to normal PCB, The board incorporating Heavy Copper PCB are produced in the same way, albeit with specialized etching and plating techniques, such as high speed/step plating and heavy copper differential etching.

The main reason to choose something is the number of advantages they provide and their wide range of uses. Well, thick copper PCB offers a number of uses and benefits that make our life easier and products better. We have listed a number of benefits below:
◈ Higher resistance to thermal stress
◈ An increase in the current load
◈ Increased mechanical strength at conductor sites and PTH holes.
◈ Usage of exotic materials to their full potential (i.e., at high temperature) without interrupting the circuit.
◈ Reduce the size of the product by incorporating several weights of copper in the same circular layer.

◈ Heavy copper panels carry higher current through the plate and help transfer heat to the external heat sink.
◈ High power density on-board transformers.
Heavy copper board helps to transfer heat to external radiator and transfer higher current.
Heavy copper board can support high current frequency, repeated thermal cycle and high temperature
Heavy copper board reduces the chance of circuit failure.
Heavy copper board PTH hole and connector have high mechanical strength.
Heavy copper board can carry large current.
The part with a large amount of copper deposits on the Heavy copper board can be used as a radiator. Alternatively, you can connect it to a cold board.