发明申请
- 专利标题: Method for manufacturing magnetic recording medium
- 专利标题(中): 磁记录介质的制造方法
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申请号: US10972325申请日: 2004-10-26
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公开(公告)号: US20050086795A1公开(公告)日: 2005-04-28
- 发明人: Takahiro Suwa , Mitsuru Takai , Kazuhiro Hattori , Shuichi Okawa
- 申请人: Takahiro Suwa , Mitsuru Takai , Kazuhiro Hattori , Shuichi Okawa
- 申请人地址: JP Tokyo
- 专利权人: TDK CORPORATION
- 当前专利权人: TDK CORPORATION
- 当前专利权人地址: JP Tokyo
- 优先权: JP2003-367542 20031028
- 主分类号: G11B5/127
- IPC分类号: G11B5/127 ; G11B5/84 ; G11B5/855
摘要:
A method for manufacturing a magnetic recording medium that has a sufficiently flat surface and includes a recording layer having a concavo-convex pattern that provides favorable accuracy of recording and reproduction. The manufacturing method includes the steps of: forming a lower non-magnetic film over a recording layer having a concavo-convex pattern; and forming an upper non-magnetic film on the lower non-magnetic film to fill concave portions 34 of the concavo-convex pattern. A bias power is applied to an object to be processed at least in the step of forming the upper non-magnetic film, and no bias power or a smaller bias power than the bias power applied in the step of forming the upper non-magnetic film is applied in the formation of the lower non-magnetic film.
公开/授权文献
- US07225528B2 Method for manufacturing magnetic recording medium 公开/授权日:2007-06-05
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