发明名称 |
Method of manufacturing a magnetic sensor by multiple depositions of varying geometry |
摘要 |
Formation of the magnetic sensor layers of a magnetic sensor are separated into at least two depositions to reduce the dimension of the sensor. The free layer portion of the sensor is deposited at a different process step than the pinned layer portion. The top of the free layer stack can be a tunnel barrier, the free layer, or part of the free layer. The free layer stack also may contain an in-stack bias layer. The longitudinal bias layer may be patterned in a separate processing step, which allows the stack containing the free layer to be effectively thinner and allow smaller track width dimensions.
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申请公布号 |
US7698807(B2) |
申请公布日期 |
2010.04.20 |
申请号 |
US20060337020 |
申请日期 |
2006.01.20 |
申请人 |
HITACHI GLOBAL STORAGE TECHNOLOGIES, NETHERLANDS B.V. |
发明人 |
CHILDRESS JEFFREY ROBINSON;FONTANA, JR. ROBERT E.;LILLE JEFFREY S. |
分类号 |
G11B5/187 |
主分类号 |
G11B5/187 |
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