发明名称 |
Method for preventing magnetic damage to a GMR head during back-end processing |
摘要 |
A method is provided for preserving the transverse biasing of a GMR (or MR) read head during back-end processing. In a first preferred embodiment, the method comprises magnetizing the longitudinal biasing layers of the read head in a transverse direction, so that the resulting field at the position of the transverse biasing layer places it in a minimum of potential energy which stabilizes its direction. The field of the longitudinal biasing layer is then reset to the longitudinal direction in a manner which maintains the transverse biasing direction. In a second embodiment, a novel fixture for mounting the read head during processing includes a magnetic portion which stabilizes the transverse bias of the read head. The two methods may be used singly or in combination.
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申请公布号 |
US2005257366(A1) |
申请公布日期 |
2005.11.24 |
申请号 |
US20050172297 |
申请日期 |
2005.06.30 |
申请人 |
HEADWAY TECHNOLOGIES, INC. |
发明人 |
GUO YIMIN;ZHU LI-YAN |
分类号 |
G11B5/00;G11B5/31;G11B5/39;H01F10/32;(IPC1-7):H04R31/00;G11B5/33;G11B5/127 |
主分类号 |
G11B5/00 |
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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