发明授权
- 专利标题： Magnetic sensing device including a sense enhancing layer
- 专利标题（中）： 磁感测装置包括感应增强层
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申请号： US11866769申请日： 2007-10-03
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公开(公告)号： US08091209B1公开(公告)日： 2012-01-10
- 发明人: Zheng Gao , Dimitar V. Dimitrov , Song S. Xue
- 申请人： Zheng Gao , Dimitar V. Dimitrov , Song S. Xue
- 申请人地址： US CA Cupertino
- 专利权人： Seagate Technology LLC
- 当前专利权人： Seagate Technology LLC
- 当前专利权人地址： US CA Cupertino
- 代理机构： HolzerIPLaw, PC
- 主分类号： G11B5/127
- IPC分类号： G11B5/127 ; H04R31/00
摘要：
A magnetic sensor includes a sensor stack having a first magnetic portion, a second magnetic portion, and a barrier layer between the first magnetic portion and the second magnetic portion. The first magnetic portion and/or the second magnetic portion comprises a multilayer structure including a first magnetic layer having a positive magnetostriction adjacent to the barrier layer, a second magnetic layer, and an intermediate layer between the first magnetic layer and the second magnetic layer. The magnetic sensor exhibits a magnetoresistive ratio of at least about 62% with a resistance-area (RA) product of about 0.45 Ω·μm2.
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