Additive processing electroless metal plating using aqueous photoresist

作者: Theodore F. Schaaf , Bruce S. Madsen , James T. Huneke , II John K. Dorey

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摘要: In a method for making printed circuit board employing an aqueous type photoresist and including etching of the substrate surface with chromic acid after application mask, chromium is washed from reducing agent at pH ≦10.