STAMPER AND METHOD FOR PRODUCTION THEREOF

摘要

A stamper for use in the injection molding using a resin material, characterized in that it has a corrosion-resistant film comprising one alloy selected from a nickel alloy, a silver alloy and a copper alloy formed on its surface contacting with the resin material; and a method for preparing the stamper which comprises first forming the above corrosion-resistant film on the surface of the mold for preparing the stamper, then forming said stamper on the film, and releasing said stamper and the corrosion-resistant film in an integrated form from the mold. The stamper exhibits excellent durability, since it has the portion contacting with the resin material which is resistant to corrosion.