Heavy copper pcb

Heavy copper pcb and extreme copper pcb are getting used by more and more power electronic products. Most commercial PCBs are manufactured for low voltage / low power applications, with copper weights starting from 1 / 2 oz / ft2 to three oz / ft2 for copper routing / planar applications. Heavy copper pcbs are manufactured with copper weights between 4 oz / ft2 and 20 oz / ft2. Copper weighing quite 20 oz / ft2 to up to 200 oz / ft2 is additionally possible, referred to as extreme copper. Our discussion will focus mainly on heavy copper.

heavy copper pcb

The construction of heavy copper pcb makes the circuit board have the following advantages:
It increases the bearing capacity of thermal stress.
The current carrying capacity increases.
The position of the connector and the mechanical strength in the PTH hole are improved.
In the case of no circuit failure, make full use of exotic materials to achieve their full potential (i.e. high temperature).
The product size is reduced by combining multiple copper weights on the same circuit layer (see Figure 1).
Heavy copper plated vias flow higher current through the plate and help transfer heat to the external radiator.
The on-board radiator is directly plated onto the plate surface using up to 120 ounces of copper.
On board high power density planar transformer

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