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From: munson@iccgcc.decnet.ab.com
Newsgroups: sci.electronics
Subject: Photo-polymer etch-resist developer chemicals?
Message-ID: <3281.27bba4d0@iccgcc.decnet.ab.com>
Date: 15 Feb 91 14:07:28 GMT
Lines: 8


        Does anyone know what chemicals can be used to develop the
photopolymer used in making printed circuit boards. I know that there
are two different solvents used on both the positive and negative acting
polymers and that they seem to to be over pricing us for what must be a 
common chemical used to dissolve away the soft unhardened resist.

                                                Brian Munson