Patent ID: 8945298
Filing Date: 2015-02-03
Classification: C23C,C23F,H05K

Abstract:
1. A non-etching non-resist composition for the treatment of copper or copper alloys, the composition consisting essentially of: at least one mineral acid or at least one organic acid, wherein said at least one mineral acid is selected from the group consisting of sulfuric acid and phosphoric acid; at least one solvent selected from the group consisting of water and an organic solvent; at least one adhesion agent selected from the group consisting of: a) heterocyclic compounds comprising at least one thiol moiety, said compounds being selected from the group consisting of compounds having at least one of formulae IIIA and IIIB: wherein b) quaternary ammonium polymers having general chemical formula II: wherein the composition is free of an oxidant for the copper or the copper alloys and wherein the composition is non-etching under conditions of conventional dip-tank techniques.