Quote:
Originally Posted by Yamamaya42
I hate to be “nit-picky” here, but the terminology I have seen being used here is incorrect, 
And as someone who has been in the major PCB manufacturing industry ever since HS, seeing this error all the time kind of gets under the skin. :O
The correct term for the protective layer on top of traces is the solder masking, and the lettering and diagrams over that, silkscreen.
Info here
https://www.ablcircuits.co.uk/pcb-layers-explained/
Conformal coating is a clear protective layer often sprayed on after the board is complete and passed all testing, it is a special polymeric film forming product that protects circuit boards, components, and other electronic devices from adverse environmental conditions. And often has a dye added so it can be seen under UV light.
Info here.
https://en.wikipedia.org/wiki/Conformal_coating |
Solder mask! That's the term I was trying to remember....I haven't had to directly design new boards or do much NON-hobby work on any so I forgot what it was called. Conformal coating is basically the same function just extended in scope to the components.
Tomato tomato... Especially in 50s/60s era gear where lacquer or shellac was probably used for both applications.