发明名称 |
Information reproduction head apparatus and information recording/reproduction system |
摘要 |
The present invention provides a yoke-type information reproduction head apparatus 100 having a magnetic sensor block 3 provided on the substrate 1 via a non-magnetic insulation layer 2. The magnetic sensor 3 includes a ferromagnetic tunnel junction element 5 which is sandwiched between an upper electrode block 6 and a lower electrode block 7 and which is connected to a magnetic domain control bias layer 8. This enables to obtain preferable S/N and bit error rate with reduced waveform noise. This invention provides a yoke-type information reproduction head having both of the characteristics of the front yoke 4-1 as a magnetic path and a lower electrode 7 as an electric path.
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申请公布号 |
US6552882(B1) |
申请公布日期 |
2003.04.22 |
申请号 |
US19990384434 |
申请日期 |
1999.08.27 |
申请人 |
NEC CORPORATION |
发明人 |
HAYASHI KAZUHIKO |
分类号 |
G11B5/31;G11B5/39;(IPC1-7):G11B5/39 |
主分类号 |
G11B5/31 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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