Invention Grant
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
- Patent Title: Thin film magnetic head including spin-valve film with free layer magnetically connected with shield
- Patent Title (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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Application No.: US12900845Application Date: 2010-10-08
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Publication No.: US08437106B2Publication Date: 2013-05-07
- Inventor: Takumi Yanagisawa , Yasushi Nishioka , Takahiko Machita , Satoshi Miura , Takayasu Kanaya , Kenzo Makino , Yoshikazu Sawada , Takekazu Yamane , Naomichi Degawa , Kosuke Tanaka , Soji Koide , Daisuke Miyauchi
- Applicant: Takumi Yanagisawa , Yasushi Nishioka , Takahiko Machita , Satoshi Miura , Takayasu Kanaya , Kenzo Makino , Yoshikazu Sawada , Takekazu Yamane , Naomichi Degawa , Kosuke Tanaka , Soji Koide , Daisuke Miyauchi
- Applicant Address: JP Tokyo
- Assignee: TDK Corporation
- Current Assignee: TDK Corporation
- Current Assignee Address: JP Tokyo
- Agency: Posz Law Group, PLC
- Main IPC: G11B5/39
- IPC: G11B5/39

Abstract:
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.
Public/Granted literature
- US20120087045A1 THIN FILM MAGNETIC HEAD INCLUDING SPIN-VALVE FILM WITH FREE LAYER MAGNETICALLY CONNECTED WITH SHIELD Public/Granted day:2012-04-12
Information query
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