What is PCB surface finish?
Introduction PCB surface finish is the metal connection between the bare copper on the board and the parts that solder to it. A PCB has a base copper surface. Without a protective coating, the base copper will oxidize easily. So we need a surface finish to protect the copper and to give a solderable surface […]
PCB Copper Surface Oxidation in Production
Introduction In double-sided and multilayer PCB production, copper surface oxidation is a serious problem. After copper deposition and whole-board plating, the copper on the board surface and inside holes, especially small holes, can oxidize during the time before pattern transfer. This oxidation harms the quality of pattern transfer and subsequent plating. Inner layers also show […]
