Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

How do you mask the application not to get the soldermask on the pads?



The commercial way is to apply the soldermask using a silk screen process.



I have also seen overlays done with regular inkjet printers so that might
also work for a solder mask if a suitable ink can be found. There are
special inkjet printers that are designed for UV ink. They even have the UV
built into the head but they are very expensive.

Bertho



From: James Sent: Saturday, March 30, 2013 02:51



So I've been doing some (more) experimenting with UV cure soldermask
ink, I wondered if anybody had any tips to add.






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