发明授权
US08437106B2 Thin film magnetic head including spin-valve film with free layer magnetically connected with shield
有权
薄膜磁头包括具有与屏蔽层磁性连接的自由层的自旋阀膜
- 专利标题： Thin film magnetic head including spin-valve film with free layer magnetically connected with shield
- 专利标题（中）： 薄膜磁头包括具有与屏蔽层磁性连接的自由层的自旋阀膜
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申请号： US12900845申请日： 2010-10-08
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公开(公告)号： US08437106B2公开(公告)日： 2013-05-07
- 发明人: Takumi Yanagisawa , Yasushi Nishioka , Takahiko Machita , Satoshi Miura , Takayasu Kanaya , Kenzo Makino , Yoshikazu Sawada , Takekazu Yamane , Naomichi Degawa , Kosuke Tanaka , Soji Koide , Daisuke Miyauchi
- 申请人： Takumi Yanagisawa , Yasushi Nishioka , Takahiko Machita , Satoshi Miura , Takayasu Kanaya , Kenzo Makino , Yoshikazu Sawada , Takekazu Yamane , Naomichi Degawa , Kosuke Tanaka , Soji Koide , Daisuke Miyauchi
- 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
- 代理机构： Posz Law Group, PLC
- 主分类号： G11B5/39
- IPC分类号： G11B5/39
摘要：
A thin film magnetic head includes; an MR film that includes a pinned layer of which a magnetization direction is pinned, a free layer of which a magnetization direction varies, and a spacer that is disposed therebetween; a pair of shields that are disposed on both sides sandwiching the MR film in a direction orthogonal to a film surface of the MR film; and an anisotropy providing layer that provides anisotropy to a first shield so that the first shield is magnetized in a desired direction, and that is disposed on an opposite side from the MR film with respect to the first shield. The MR film includes a magnetic coupling layer that is disposed between the first shield and the free layer and that magnetically couples the first shield with the free layer.
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