Invention Grant
- Patent Title: Magnetoresistive read transducer having hard magnetic shunt bias
- Patent Title (中): 具有硬磁分路偏置的磁阻读取传感器
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Application No.: US287970Application Date: 1988-12-21
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Publication No.: US5005096APublication Date: 1991-04-02
- Inventor: Mohamad T. Krounbi , Po-Kang Wang , Otto Voegeli
- Applicant: Mohamad T. Krounbi , Po-Kang Wang , Otto Voegeli
- Applicant Address: NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: NY Armonk
- Main IPC: G11B5/39
- IPC: G11B5/39
Abstract:
A magnetoresistive (MR) read transducer comprising an MR layer having passive end regions separated by a central active region. A longitudinal bias is produced by a thin film of hard magnetic material in the end regions only, and the thin film of hard magnetic material is spaced from the MR layer by a nonmagnetic spacer layer so that a magnetostatic longitudinal bias is produced of a level to maintain the passive end regions of the MR layer in a stable state.
Public/Granted literature
- US4361643A Photomask and method of using same Public/Granted day:1982-11-30
Information query
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