Patent ID: 7462249
Filing Date: 2008-12-09
Classification: C23F,C23G

Abstract:
1. A surface treatment process for a metal article, comprising the steps of: providing a metal article made of at least one of copper and a copper alloy; degreasing a surface of the metal article; removing metal oxide impurities from the degreased surface of the metal article by contacting said metal article with an acid solution; and forming a Cu-organic complex layer on the surface of the metal article by using an antioxidant agent; wherein the antioxidant agent includes benzotriazole in an approximate amount of 0.09 wt % to 0.12 wt %, sodium benzoate in an approximate amount of 0.03 wt % to 0.04 wt %, triethanolamine in an approximate amount of 0.06 wt % to 0.07 wt %, an alcohol in an approximate amount of 0.07 wt % to 0.1 wt %, and water.