A manufacturing method of calendered copper foil with blackened surface
2021-01-25
Calendered copper foil products have good ductility, flexibility, low roughness and high folding resistance, and have become the basic materials of flexible printed circuit boards, mainly used in flexible circuit boards and high-frequency circuit boards. In order to meet the requirements of circuit board for heat resistance, corrosion resistance and solderability of copper foil, the surface of rolled copper foil generally needs to be blackened (copper cobalt nickel or copper nickel coating) and red
Learn more+