Patent ID: 6749904
Filing Date: 2004-06-15
Classification: B82Y,G11B,Y10T

Abstract:
A method of manufacturing a high areal storage density, patterned magnetic data/information recording, storage and retrieval medium, which method comprises the sequential steps of:(a) providing a non-magnetic substrate having a surface for layer formation thereon; (b) forming a layer of an amorphous, paramagnetic or anti-paramagnetic material on said substrate surface, said layer of amorphous, paramagnetic or anti-paramagnetic material comprising at least one component which is ferromagnetic when in at least partially crystallized form; and (c) at least partially crystallizing said at least one component of said layer of amorphous, paramagnetic or anti-paramagnetic material at selected locations thereof to thereby form a pattern of at least partially crystallized, ferromagnetic particles or grains of said at least one component of said layer, said ferromagnetic particles or grains being spaced apart and surrounded by a matrix of said amorphous, paramagnetic or anti-paramagnetic material.