Hi I am wondering if a PCB silkscreen layer can be printed directly onto a copper layer without a solder mask. I don't see this often but I have a design for which this would be useful. Has anyone done this?
I've done this in the past, but it was unintentional and before the silkscreen actually got printed on the copper, the manufacterer removed it before it got to production
The best people to talk to about this would be the manufacturer, usually when you do print on copper they'll send you an email or just remove it. They'll be able to tell you if it will work or not and since every manufacuterer used different silkscreen formulations and ways to print (some are like a dot matrix printer) they would be the one to ask.