发明名称 |
MAGNETIC SENSOR HAVING HARD BIAS STRUCTURE FOR OPTIMIZED HARD BIAS FIELD AND HARD BIAS COERCIVITY |
摘要 |
A magnetic read sensor having a hard bias structure that extends beyond the back edge of the sensor stack by a controlled, distance that is chosen to maximize both hard bias field and hard bias magnetic coercivity and anisotropy. The hard bias structure has a back edge that is well defined and that has a square corner at its innermost end adjacent to the sensor stack. The magnetic sensor can be constructed by a process that includes a separate making an milling process that is dedicated to defining the back edge of the hard bias structure. |
申请公布号 |
US2013163121(A1) |
申请公布日期 |
2013.06.27 |
申请号 |
US201113335589 |
申请日期 |
2011.12.22 |
申请人 |
LE QUANG;SEAGLE DAVID J.;LIU GUANGLI;AHN YONGCHUL;LIAO SIMON H.;HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V. |
发明人 |
LE QUANG;SEAGLE DAVID J.;LIU GUANGLI;AHN YONGCHUL;LIAO SIMON H. |
分类号 |
G11B5/60;G11B5/127 |
主分类号 |
G11B5/60 |
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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