Patent ID: 7105280

Claim:
A method of manufacturing a stamper/imprinter for use in patterning of a recording medium, comprising sequential steps of: (a) providing a permanent master comprising a body of a substantially rigid material having a surface with a topographical pattern formed therein comprising a patterned plurality of spaced-apart recesses with a plurality of non-recessed areas therebetween, said topographical pattern corresponding to a pattern to be formed in a recording medium; (b) forming a layer of a substantially rigid magnetic material over said surface of said permanent master with said topographical pattern formed therein, wherein said layer of substantially rigid magnetic material has saturation magnetization B sat ≧about 0.5 Tesla, permeability μ≧about 5, and is selected from the group consisting of CoSiFe and CoFeV; and (c) separating said layer of a substantially rigid magnetic material from said master, said layer of a substantially rigid magnetic material having an imprinting surface with a topographical pattern formed therein replicating said topographical pattern of said permanent master.