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Soldermask


For mounting the electrical components on the printed circuit boards, an assembly process is required. This process can be done by hand or through specialized machinery. The assembly process requires the use of solder to place the components on the board. For avoiding or to prevent the solder to accidentally short-circuit two tracks from different nets, PCB manufacturers apply a finish or varnish called soldermask on both surfaces of the board. The most common color of soldermask used in printed circuit boards is green, followed by red and blue.

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