munson@iccgcc.decnet.ab.com (02/15/91)
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