Heavy copper PCB is also called thick copper PCB, in which there are 3 ounces (oz) of copper or more on the internal and external layers of a printed circuit board. The circuit board with a copper thickness of more than 4 oz per square foot (ft2) is also categorized as a heavy copper PCB. Extreme copper means 20 oz per ft2 to 200 oz per ft2.
Heavy copper PCB can conduct and implement an additional layer to keep things safe and work perfectly.so the manufacturing processes of high end heavy copper PCB intake the combination of multiple processes enabling extreme copper thickness requirements.
