What Makes a Good Solder Mask for PCB Manufacturing?
A PCB can stand Electrical Testing and cause headaches during assembly.  Bad Registration reveals Cu,  Poor Curing peels,  Variable Coating Thickness fails after reflow/final use.  Therefore a good Solder Mask must not just be coloured ink. It has to be a controlled layer that suits the PCB material, assembly temperature,  part density and production mode. One weak...
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