发明名称 |
Tunnel magnetoresistive effective element, a thin film magnetic head, a magnetic head device and a magnetic disk drive device |
摘要 |
A ferromagnetic tunnel effective film has a free layer, and a pinned layer and a tunnel barrier layer sandwiched between the free layer and the pinned layer. A bias magnetic field-inductive layer applies a given magnetic field to the free layer, and has its larger width than that of the ferromagnetic tunnel effective film in the bias magnetic field direction. A flux guide layer is stacked with the bias magnetic field-inductive layer, and magnetically combined with the free layer. One end of the flux guide layer constitutes a flux probe portion having its smaller width than that of the bias magnetic field-inductive layer and projecting from the ends of the bias magnetic field-inductive layer.
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申请公布号 |
US6671141(B2) |
申请公布日期 |
2003.12.30 |
申请号 |
US20010805225 |
申请日期 |
2001.03.14 |
申请人 |
TDK CORPORATION |
发明人 |
SHIMAZAWA KOJI;KASAHARA NORIAKI;ARAKI SATORU |
分类号 |
G11B5/00;G11B5/012;G11B5/39;H01F10/32;(IPC1-7):G11B5/39 |
主分类号 |
G11B5/00 |
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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