发明授权
- 专利标题: Patterned media and method of manufacturing the same, and magnetic recording apparatus
- 专利标题(中): 图案化介质及其制造方法以及磁记录装置
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申请号: US12805471申请日: 2010-08-02
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公开(公告)号: US08257560B2公开(公告)日: 2012-09-04
- 发明人: Yoshiyuki Kamata , Masatoshi Sakurai , Satoshi Shirotori , Kaori Kimura
- 申请人: Yoshiyuki Kamata , Masatoshi Sakurai , Satoshi Shirotori , Kaori Kimura
- 申请人地址: JP Tokyo
- 专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人地址: JP Tokyo
- 代理机构: Nixon & Vanderhye P.C.
- 优先权: JP2006-072857 20060316
- 主分类号: C23C14/00
- IPC分类号: C23C14/00 ; C23C14/32 ; B44C1/22
摘要:
A patterned media has a substrate, and a magnetic recording layer on the substrate including protruded magnetic patterns and a nonmagnetic material filled in between the protruded magnetic patterns. In the patterned media, a depth Db and a depth Da, which are defined that Db is a depth from a surface of the magnetic patterns to a surface of the nonmagnetic material filled in a first central part between the magnetic patterns adjacent to each other in a cross-track direction or a down-track direction, and Da is a depth from a surface of the magnetic patterns to a surface of the nonmagnetic material filled in a second central part in a portion surrounded by the magnetic patterns, have a relationship that the depth Da is greater than the depth Db.
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