Heavy copper PCB

0 votes
asked Feb 26, 2021 in H&E by MayNa (420 points)

Heavy copper printed circuit boards and extremely copper printed circuit boards have been used in more and more power electronic products. Most commercial PCBs are manufactured for low-voltage/low-power applications, and the weight of copper ranges from 1/2 oz/ft2 to 3 oz/ft2 for copper wiring/planar applications. The weight of copper in heavy copper PCBs is between 4 ounces per square foot and 20 ounces per square foot. The weight of copper may also be as high as 20 oz / ft2 to 200 oz / ft2, which is called polar copper. Our discussion will mainly focus on heavy copper.

The structure of the heavy copper printed circuit board gives the circuit board the following advantages:
It increases the ability to withstand thermal stress.
Increase in current carrying capacity.
The position of the connector and the mechanical strength in the PTH hole are improved.
In the absence of circuit failure, please make full use of the peculiar materials to achieve their full potential (ie high temperature).
By combining multiple copper weights on the same circuit layer, the product size can be reduced (see Figure 1).
The thick copper-plated vias will flow a large current on the board and help transfer heat to the external heat sink.
Car radiators use up to 120 ounces of copper to be directly plated on the board.
Airborne high power density planar transformer

Please log in or register to answer this question.

Welcome to Bioimagingcore Q&A, where you can ask questions and receive answers from other members of the community.
...