[sdiy] blue copper-clad circuit boards?

[Tim Parkhurst]

Still looks like solder mask to me. Notice that it is shiny. Bare PCB
material (at least the FR4 that I'm familiar with) isn't shiny unless it's
coated with something. Also note the blue letters near the top of the
picture. They look like they were created by some sort of
imaging/photoresist process (small, good detail). Again, I could be totally
wrong on this but this pic looks like a board with a soldermask that doesn't
cover the copper in the area shown in the picture. Maybe these are switch
contacts?

Tim Servo
"There is no conversation more boring than the one where everybody agrees."
-Michel de Montaigne

*********************************************************
> -----Original Message-----
> From: Fahl, Romeo [mailto:RFahl at extensis.com]
> Sent: Friday, May 02, 2003 9:30 AM
> To: synth-diy at dropmix.xs4all.nl
> Subject: RE: [sdiy] blue copper-clad circuit boards?
> 
> I don't think that this:
> 
> http://www.spiritone.com/~8brain/tkbds/kbdclose.jpg
> 
> used a blue soldermask.  Anyone know for sure?
> 
> R.



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