发明公开
EP0763819A1 Stabilization of giant magnetoresistive transducers
失效
Wandlern的Stabilisierung von riesenmagnetoresistiveness
- 专利标题： Stabilization of giant magnetoresistive transducers
- 专利标题（中）： Wandlern的Stabilisierung von riesenmagnetoresistiveness
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申请号： EP96114469.8申请日： 1996-09-10
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公开(公告)号： EP0763819A1公开(公告)日： 1997-03-19
- 发明人: Yuan, Samuel W.
- 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： US529574 19950918
- 主分类号： G11B5/39
- IPC分类号： G11B5/39
摘要：
A magnetic transducer employing giant magnetoresistance (GMR) has alternating ferromagnetic layers (13b,13e) and spacer layers (14a,14b), the spacer layers (14a,14b) having either different material compositions or different thicknesses across their widths to produce variations in the coupling between adjacent ferromagnetic layers across their widths. Longitudinal stabilization of the multi-layer GMR sensor is achieved by the use of exchange coupling layers (15a,15b) on the top and/or bottom of the sensor edge-track regions.
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