The copper foil in order to form the copper layer on the surface of the flexible copper-clad laminate null polyimide resin formation which can making use of the finishing

摘要

PROBLEM TO BE SOLVED: To provide a surface treated copper foil which is used for forming a copper layer of a flexible copper clad laminate, enables formation of a fine pitch circuit, and shows good adhesion strength after heating.;SOLUTION: In the surface treated copper foil for manufacturing the flexible copper clad laminate for forming the copper layer on a surface of a polyimide resin layer, the copper foil has the surface treated layer of a cobalt layer or a laminate layer of a cobalt layer and a cobalt-zinc alloy layer on the adhesion surface with the polyimide resin layer.;COPYRIGHT: (C)2008,JPO&INPIT