发明名称 Method and apparatus for fixed-gap, constant-field patterning of magnetic media by contact printing
摘要 A method of forming a magnetic transition pattern in a magnetic material by contact printing comprises steps of providing a stacked assembly including a workpiece including a surface comprised of the magnetic material including a plurality of initialized, unidirectionally aligned magnetic domains, and a high saturation magnetization stamper having an imprinting surface in intimate contact with the workpiece surface, the imprinting surface comprising a plurality of projections and depressions arranged in a pattern corresponding to the magnetic transition pattern to be formed in the magnetic material, and selectively magnetically re-aligning the initialized, unidirectionally aligned magnetic domains by placing the assembly in a fixed gap contact printing apparatus including a magnet means having a pair of spaced-apart, stationary magnetic poles providing an oppositely directed, uniform intensity, unidirectional re-alignment magnetic field.
申请公布号 US6985314(B1) 申请公布日期 2006.01.10
申请号 US20030434061 申请日期 2003.05.09
申请人 SEAGATE TECHNOLOGY LLC 发明人 WANG LI-PING
分类号 G11B5/86 主分类号 G11B5/86
代理机构 代理人
主权项
地址
您可能感兴趣的专利