Patent ID: 7028743

Claim:
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 sat ≧˜1.2 Tesla and high permeability μ≧˜5 on said topographically patterned surface, said blanket layer overfilling each of said plurality of recesses and including an overburden portion extending over each of said non-recessed areas, said blanket layer having an exposed surface opposite said topographically patterned surface; (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.