发明名称 |
Magnetoresistive head with improved in-stack longitudinal biasing layers and fabricating method |
摘要 |
A magnetoresistive head and a fabricating method thereof accomplishing high sensitivity and low noise are provided even if track width narrowing makes progress. In one embodiment, a pinned layer includes a laminate which includes at least two magnetic layers and where adjacent magnetic layers are coupled antiferromagnetically to each other, and a mechanism to apply a longitudinal biasing field to a free layer is made to function by laminating a nonmagnetic separate layer/longitudinal biasing layer/antiferromagnetic layer connecting the free layer and opposite a nonmagnetic conductive layer (or nonmagnetic tunneling barrier layer). Controlling a magnetization direction of the longitudinal biasing layer which bears application of a longitudinal biasing field to the pinned layer and free layer is achieved by annealing carried out while applying a magnetic field in a track width direction and applying a magnetic field at room temperature.
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申请公布号 |
US7535683(B2) |
申请公布日期 |
2009.05.19 |
申请号 |
US20040977324 |
申请日期 |
2004.10.29 |
申请人 |
HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V. |
发明人 |
MEGURO KENICHI;NISHIOKA KOUICHI;HATATANI MASAHIKO;HAGINOYA CHISEKI |
分类号 |
G11B5/39;G11B5/127;G11B5/33;H01F10/32;H01L43/08 |
主分类号 |
G11B5/39 |
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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