发明授权
- 专利标题: Notched shield and pole structure with slanted wing for perpendicular recording
- 专利标题(中): 具有垂直记录的倾斜翼的缺口盾和杆结构
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申请号: US10976479申请日: 2004-10-29
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公开(公告)号: US07764469B2公开(公告)日: 2010-07-27
- 发明人: Kuok San Ho , Yimin Hsu , Ching Hwa Tsang
- 申请人: Kuok San Ho , Yimin Hsu , Ching Hwa Tsang
- 申请人地址: NL Amsterdam
- 专利权人: Hitachi Global Storage Technologies Netherlands B.V.
- 当前专利权人: Hitachi Global Storage Technologies Netherlands B.V.
- 当前专利权人地址: NL Amsterdam
- 代理机构: Zilka-Kotab, PC
- 主分类号: G11B5/33
- IPC分类号: G11B5/33
摘要:
A magnetic structure for use in a magnetic head for avoiding stray field writing. The magnetic structure can be for example a magnetic shield or could be a magnetic pole of a write head and is particularly advantageous for use in a perpendicular recording system, because such perpendicular recording systems are especially susceptible to stray field writing. The magnetic structure includes a forward protruding portion that extends toward the air bearing surface (ABS) of the head also includes first and second wing portions that extend laterally from the forward protruding portion. The wing portions each have a front edge that is recessed from the ABS. The wings are tapered so that the amount of recess of the front edge of the wings increases with lateral distance from the center of the magnetic structure.
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