PCB solder mask is also known as PCB solder resist or PCB solder mask. It is a thin polymer protective layer PCB layer or coating that is applied on the copper traces to avoid initiating corrosion and oxidation processes after the PCB manufacturing process.
PCB solder mask is one of the important components in the PCB process. In-depth knowledge of solder mask will help engineers design PCBs with better functions and quality. This article will explore the composition of PCB solder mask and its important role.