发明公开
EP0789250A3 Thin film giant magnetoresistive cip transducer with flux guide yoke structure
失效
带磁通导磁轭结构的薄膜巨磁阻cip传感器
- 专利标题： Thin film giant magnetoresistive cip transducer with flux guide yoke structure
- 专利标题（中）： 带磁通导磁轭结构的薄膜巨磁阻cip传感器
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申请号： EP97101731.4申请日： 1997-02-04
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公开(公告)号： EP0789250A3公开(公告)日： 1997-10-01
- 发明人: Lederman, Marcos M. , Kroes, Derek Jan
- 申请人： READ-RITE CORPORATION
- 申请人地址： 345 Los Coches Street Milpitas California 95035 US
- 专利权人： READ-RITE CORPORATION
- 当前专利权人： READ-RITE CORPORATION
- 当前专利权人地址： 345 Los Coches Street Milpitas California 95035 US
- 代理机构： Körber, Wolfhart, Dr. rer.nat.
- 优先权： US600238 19960212
- 主分类号： G01R33/09
- IPC分类号： G01R33/09 ; G11B5/39
摘要：
A giant magnetoresistive (GMR) transducer employs a pair of flux guide yoke members (14, 15) that define a magnetic transducing gap (G). A GMR structure (11) formed of stack of multiple layers (11b, 11c, 11d) is located away from the transducing gap (G) between spaced portions of one of the flux guide yoke members (14, 15) and is electrically connected to the facing surfaces of these spaced portions. When a sense current is supplied through the spaced portions of the one flux guide member (14, 15) and through the GMR structure (11), a current-in-the-plane (CIP) mode of operation of the transducer is effectuated. Magnetic bias (21) is supplied to the GMR structure either by a permanent magnet or by a current-carrying bias conductor.
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