this post was submitted on 06 Apr 2024
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Making a PCB, using solder mask as etch resist. (discuss.tchncs.de)
submitted 4 months ago by Rolive@discuss.tchncs.de to c/askelectronics@discuss.tchncs.de
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This is an idea that entered my mind. The traditional way is applying some etch resist like toner or dry film, etching away the copper and then adding solder mask before populating the board with components.

Can the solder mask be used as etch resist instead? It feels like skipping an unnecessary step in the process. Why isn´t this more common? This way you won´t need the step of removing etch resist only to replace it with a slightly different compound.

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