Using Heavy Copper and EXTREME Copper in PCB Design and Fabrication for Maximum Reliability
An increasing number of power electronics products are taking advantage of a growing trend in the printed circuit board industry: Heavy Copper and EXTREME Copper Printed Circuit Boards. Most commercially available PCBs are manufactured for low-voltage/low power applications, with copper traces/planes made up of copper weights ranging from 1/2 oz/ft2 to 3 oz/ft2. A heavy copper circuit is manufactured with copper weights anywhere between 4 oz/ft2 to 20 oz/ft2. Copper weights above 20 oz/ft2 and up to 200 oz/ft2 are also possible and are referred to as EXTREME Copper. Our discussion will focus primarily on Heavy Copper.
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