Techspray WonderMASK temporary solder masks offer several advantages for electronics assembly and PCB manufacturing processes. It is non-ammoniated, non-flammable, and easily peelable. The spray has a ...

The key element here is that copper and solder mask placements have extremely fine pitch. After placing the LEDs and resistors there’s a lot of blank space which was filled with what you might ...

Professionally manufactured boards don’t have this problem since they have solder mask covering the copper that doesn’t need soldering. [Ahmad Tabbouch] has a method that uses Kapton tape to ...