Patent ID: 7028743
Filing Date: 2006-04-18
Classification: B82Y,G11B,H01F

Abstract:
1. A method of manufacturing a stamper/imprinter for use in patterning of magnetic and magneto-optical (MO) recording media by contact printing, comprising sequential steps of: (a) providing a “master” comprising a body of material having a topographically patterned surface, said topographically patterned surface comprising a patterned plurality of spaced-apart recesses with a plurality of non-recessed areas therebetween, said topographical pattern corresponding to a magnetic pattern to be formed in a said magnetic or MO recording medium; (b) forming a blanket layer of a magnetic material having a high saturation magnetization B (c) forming a layer of Ni on said exposed surface of said blanket layer; and (d) separating the thus-formed structure from said topographically patterned surface of said master to form a magnetic stamper/imprinter comprised of a said blanket layer with a topographically patterned surface corresponding to said topographically patterned surface of said master and a Ni layer overlying said surface of said blanket layer opposite said topographically patterned surface thereof.