发明授权
US08049989B2 Magnetic head for perpendicular recording having stepped wrap around shield with independent control of write pole track width and flare point dimensions
有权
用于垂直记录的磁头，具有围绕屏蔽的台阶缠绕，独立控制写入磁极宽度和扩展点尺寸
- 专利标题： Magnetic head for perpendicular recording having stepped wrap around shield with independent control of write pole track width and flare point dimensions
- 专利标题（中）： 用于垂直记录的磁头，具有围绕屏蔽的台阶缠绕，独立控制写入磁极宽度和扩展点尺寸
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申请号： US12005557申请日： 2007-12-26
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公开(公告)号： US08049989B2公开(公告)日： 2011-11-01
- 发明人: Ming Jiang , Changqing Shi
- 申请人： Ming Jiang , Changqing Shi
- 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： Lorimer Labs
- 代理商 D'Arcy H. Lorimer
- 主分类号： G11B5/147
- IPC分类号： G11B5/147
摘要：
Methods and structures for the fabrication of a thin film, perpendicular recording write head are disclosed. The fabrication involves the deposition of two different oxide layers which have mutually high etch selectivities. This characteristic allows a write pole structure to be built wherein the track width is independent of the location of the flare point. The process also produces a structure wherein the throat height of the shield is self aligned to the location of the flare point of the write pole.
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