Patent ID: 6352656
Filing Date: 2002-03-05
Classification: B29D,G11B,Y10S

Abstract:
A manufacturing method for a metallic stamper, which comprises:forming a coat made of a resin material consisting essentially of acryl or polyimide onto a Si substrate which is to be a master, the resin material having a lower hardness than Ni of projections at a metallic stamper of Ni to prevent deformation of the projections on the occasion of separating the stamper from the master; forming a pattern of a mask to be an etching mask onto the resin material; etching a non-masked portion not masked by the mask of the resin material partially in a thicknesswise direction of the Si substrate to retain part of the non-masked portion of the resin material; after the etching, removing the mask, thereby obtaining the master; forming an Ni portion onto the master; and separating the Ni portion from the resin material preventing deformation of the projections, thereby obtaining the metallic stamper.