JLCPCB: 2$ Purple Solder Mask Printed Circuit Board – PCB
While making PCB a mask named Solder mask is used. This Solder mask is a thin lacquer-like layer of polymer and applies to the copper traces of any PCB for its protection against oxidation. It’s a protective layer of liquid and gets applied on the both top and bottom sides of a Printed Circuit Board. The function of the Solder mask is to protect the copper, apart from the solder pads, from Oxidation. The solder mask comes in different colors. Hence, The color of the solder mask defines the color of the Printed circuit board It comprises lacquer impregnated with pigments that protect the traces of copper.
JLCPCB is the foremost PCB prototype & manufacturing company in china, providing us with the best service we have ever experienced regarding (Quality, Price Service & Time).PCB Prototype for 5$