发明名称 |
Stabilized MR sensor and flux/heat guide joined by contiguous junction |
摘要 |
The back end of an MR sensor and a flux guide are joined by a contiguous self-aligned junction so that a predictable overlap of the flux guide on the back end of the MR sensor can be achieved for optimizing signal flux density in the MR sensor. Lead/longitudinal bias layers for the MR sensor are also joined by a contiguous self-aligned junction to the flux guide for stabilizing the flux guide. By employing a single lift off resist mask the MR sensor and the lead/longitudinal bias layers can be patterned followed by deposition of the flux guide. The flux guide is a bilayer of an insulation material layer and a flux guide material layer. The insulation material layer is sandwiched between the MR sensor and the flux guide material layer and between the lead/longitudinal bias layers and the flux guide material layer. A heat guide or combined flux guide and heat guide may be substituted for the aforementioned flux guide.
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申请公布号 |
US6181532(B1) |
申请公布日期 |
2001.01.30 |
申请号 |
US19990280489 |
申请日期 |
1999.03.30 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
DOVEK MORIS MUSA;FONTANA ROBERT E.;HSIAO RICHARD;KROUNBI MOHAMAD TOWFIK;SANTINI HUGO ALBERTO EMILIO;SPERIOSU VIRGIL SIMON |
分类号 |
G01R33/09;G03F7/00;G11B5/31;G11B5/39;(IPC1-7):G11B5/39 |
主分类号 |
G01R33/09 |
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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