Invention Grant
- Patent Title: Magnetoresistive effect thin-film magnetic head with anti-ferromagnetic layer for magnetic domain control
- Patent Title (中): 磁阻效应薄膜磁头与反铁磁层进行磁畴控制
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Application No.: US11610116Application Date: 2006-12-13
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Publication No.: US07692901B2Publication Date: 2010-04-06
- Inventor: Takeo Kagami
- Applicant: Takeo Kagami
- Applicant Address: JP Tokyo
- Assignee: TDK Corporation
- Current Assignee: TDK Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Main IPC: G11B5/39
- IPC: G11B5/39

Abstract:
A thin-film magnetic head includes a lower electrode layer, an MR multi-layered structure, through which a current passes in a direction perpendicular to a lamination plane, stacked on the lower electrode layer, soft magnetic layers for magnetic domain control formed on both sides in a track width direction of the MR multi-layered structure, an anti-ferromagnetic layer for magnetic domain control continuously stacked on the MR multi-layered structure and the soft magnetic layers for magnetic domain control, the anti-ferromagnetic layer mutually exchanged-coupled to the soft magnetic layers for magnetic domain control, and an upper electrode layer stacked on the anti-ferromagnetic layer for magnetic domain control.
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