发明公开
- 专利标题： Bias-free symmetric dual spin valve giant magnetoresistance transducer
- 专利标题（中）： 无偏置对称双自旋阀巨磁阻传感器
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申请号： EP97114297.1申请日： 1997-08-19
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公开(公告)号： EP0826975A2公开(公告)日： 1998-03-04
- 发明人: Tan, Minshen
- 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： US702961 19960826
- 主分类号： G01R33/09
- IPC分类号： G01R33/09 ; G11B5/39
摘要：
A giant magnetoresistive dual spin valve sensor employs at least one magnetic biasing layer located adjacent to an antiferromagnetic layer in the spin valve structure which includes two pinned ferromagnetic layers (32, 33). The antiferromagnetic layer simultaneously pins the biasing layer and the ferromagnetic layer nearest the antiferromagnetic layer. This structure eliminates the bias point offset present in prior dual spin valve sensors.
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