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The traditionally green coating which protects copper on PCBs from oxidation and shorting due to solder. Use this tag for PCB design questions and soldering questions which require attention to the mask layer.

10 votes

Questions on mass-production soldering

wave soldering For wave soldering the PCB passes over a bath of molten solder where the solder is pushed up so that it strikes along the bottom side of the PCB. You'll need a solder resist mask to pre …
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