发明授权
US08233235B2 PMR writer having a tapered write pole and bump layer and method of fabrication
有权
PMR写入器具有锥形写极点和凸起层及其制造方法
- 专利标题: PMR writer having a tapered write pole and bump layer and method of fabrication
- 专利标题(中): PMR写入器具有锥形写极点和凸起层及其制造方法
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申请号: US12634514申请日: 2009-12-09
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公开(公告)号: US08233235B2公开(公告)日: 2012-07-31
- 发明人: Yingjian Chen , Liubo Hong , Yimin Hsu
- 申请人: Yingjian Chen , Liubo Hong , Yimin Hsu
- 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: Patterson & Sheridan, LLP
- 主分类号: G11B5/147
- IPC分类号: G11B5/147 ; G11B5/23
摘要:
Methods for fabrication of tapered magnetic poles with a non-magnetic front bump layer. A magnetic pole may have a tapered surface at or near an air bearing surface (ABS), wherein a thickness of the write pole increases in a direction away from the ABS. A non-magnetic front bump layer may be formed on the tapered surface of the magnetic pole and away from the ABS. The front bump layer may increase the separation distance between a shield layer and the magnetic pole near the tapered surface, thereby improving the performance of the write head.
公开/授权文献
- US20110134568A1 PMR WRITER AND METHOD OF FABRICATION 公开/授权日:2011-06-09
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