Patent ID: 7678183
Filing Date: 2010-03-16
Classification: C23C,H01L

Abstract:
1. An electroless palladium plating bath comprising a palladium compound, at least one complexing agent selected from the group consisting of ammonia and amine compounds, at least one reducing agent selected from the group consisting of phosphinic acid and phosphinate salts, and at least one unsaturated carboxylic acid compound selected from the group consisting of acrylic acid, propiolic acid, crotonic acid, isocrotonic acid, methacrylic acid, citraconic acid, trans-2-butene-1,4-dicarboxylic acid, itaconic acid, tetrolic acid, aconitic acid, muconic acid, sorbic acid, tiglic acid, angelic acid, senecionic acid, glutaconic acid, mesaconic acid, oleic acid, linoleic acid, cinnamic acid, and anhydrides, salts and derivatives thereof.