Invention Application
WO1988008337A1 ADDITIVE METHOD FOR MANUFACTURING PRINTED CIRCUIT BOARDS USING AQUEOUS ALKALINE DEVELOPABLE AND STRIPPABLE PHOTORESISTS 审中-公开
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ADDITIVE METHOD FOR MANUFACTURING PRINTED CIRCUIT BOARDS USING AQUEOUS ALKALINE DEVELOPABLE AND STRIPPABLE PHOTORESISTS
Abstract:
An additive process for making printed circuit boards utilizing aqueous alkaline strippable resists, in which a suitable insulating substrate is patterned with the resist, the resist-patterned substrate catalyzed to electroless metal deposition, the resist then stripped completely from the substrate, utilizing an aqueous alkaline solution, preferably containing a reducing agent, and the electroless metal then deposited over the areas of the substrate catalyzed in the desired pattern.
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