Multi-layer PCB manufacturing process
soldering
screen printing
photosensitive ink

Soldermask | Multi-layer PCB Manufacturing Process - 11

973 views Sep 22,2022

As a protective layer, the solder mask layer is covered on the traces and substrates that do not need to be soldered to prevent short circuits during soldering. At the same time, it serves to provide a permanent electrical environment with a protective layer that is chemically resistant. The whole process can be divided into five parts: pre-treatment, printing solder mask, pre-drying, exposure and developing.

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