Patent ID: 7632628

Claim:
A method for manufacturing a stamper used in an injection molding of a substrate out of a resin material, said method comprises steps of: providing a metallic mold for manufacturing the stamper on which a convex shape corresponding to a concave shape to be formed on a surface of the stamper contacting with the resin material, is formed; forming an anti-corrosion film made of an alloy selected from the group consisting of a silver alloy and a copper alloy on the surface of the metallic mold on which said convex shape is formed; laminating a metallic layer as a metallic main body on said anti-corrosion film by means of an electroplating method; and subsequently separating both said metallic main body laminated on the anti-corrosion film together with the anti-corrosion film from the metallic mold at the same time; wherein copper or silver is the main component in both the metallic main body and the anti-corrosion film.