- 专利标题： MAGNETIC RECORDING MODULE HAVING TUNNEL VALVE SENSORS WITH DISSIMILAR TUNNEL BARRIER RESISTIVITIES
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申请号： US15377790申请日： 2016-12-13
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公开(公告)号： US20180166096A1公开(公告)日： 2018-06-14
- 发明人: Robert G. Biskeborn , Robert E. Fontana, Jr. , Calvin S. Lo
- 申请人： International Business Machines Corporation
- 主分类号： G11B5/31
- IPC分类号： G11B5/31 ; G11B5/008
摘要：
An apparatus according to one embodiment includes a first read transducer having a tunnel valve structure, and a second read transducer coupled to the first read transducer. The second read transducer has a tunnel valve structure as well, but the tunnel valve structure of the first read transducer has a different resistivity than the tunnel valve structure of the second read transducer. An apparatus according to another embodiment includes an array of first read transducers, each first read transducer having a tunnel valve structure. At least a second read transducer is coupled to the first read transducers, the second read transducer having a tunnel valve structure. The tunnel valve structure of the first read transducer has a different resistivity than the tunnel valve structure of the second read transducer.
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