发明授权
- 专利标题： Magnetoresistive head and magnetic read/write device
- 专利标题（中）： 磁阻磁头和磁读/写装置
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申请号： US957188申请日： 1997-10-24
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公开(公告)号： US6087026A公开(公告)日： 2000-07-11
- 发明人: Masahiro Kakehi , Yuji Uehara
- 申请人： Masahiro Kakehi , Yuji Uehara
- 申请人地址： JPX Kawasaki
- 专利权人： Fujitsu Limited
- 当前专利权人： Fujitsu Limited
- 当前专利权人地址： JPX Kawasaki
- 优先权： JPX9-146830 19970604
- 主分类号： G11B5/39
- IPC分类号： G11B5/39 ; H01F10/08 ; H01F10/30 ; H01F10/32 ; H01L43/08 ; G11B5/66
摘要：
A MR head employs a biasing soft magnetic film of a FeXN-based alloy which undergoes no change in the direction of its axis of easy magnetization even when subject to heat treatment. The MR head has an anisotropic magnetic field size of 10 Oe or greater, and electrical resistance p of 70 .mu..OMEGA.cm or greater, and a saturation flux density Bs of 1 T or greater. The direction of the axis of easy magnetization of the biasing soft magnetic film is oriented perpendicular to the direction of sense current, and the direction of the axis of easy magnetization of the MR film is oriented parallel to the sense current direction.