I've actually done this before on a commercial product (it was
green/yellow/white). The base soldermask (color) was green -- you only
get one soldermask, so choose your base color based on which soldermask
colors are available. Then the board was processed as normal. Then a
two pass silkscreen stage vs. the normal single silkscreen at the final
silkscreen stage (which is normally the last stage, except for possibly
final drilling/routing the panels -- depends on the PCB mfg.)

You could even do it in-house to standard PCB's if you have your own
silkscreen capabilities.

Matt Pobursky
Maximum Performance Systems

On Wed, 31 Mar 2004 09:48:16 +1200, Brent Brown wrote:
> I think most PCB manufacturers, if requested to, can use different coloured
> screen printing inks and/or solder masks. The board in that picture looks to
> me like a blue solder mask (instead of the normal green) followed by white
> screen print (swirls) followed by black screen print (component
> refference/overlay).

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email listserv@mitvma.mit.edu with SET PICList DIGEST in the body