Solder Mask in RF & Microwave PCBs : Definition, Functions, and Design Considerations
What Is Solder Mask? Solder mask, also known as or solder resist, is a thin polymer-based insulating layer applied to the surface of a printed circuit board (PCB). It covers copper traces while leaving precise openings on pads, vias, and test points for component soldering. In RF and microwave PCBs, solder mask is not only […]
