发明授权
- 专利标题： Magnetic write head having a self aligned, steep shoulder pole structure and method of manufacture thereof
- 专利标题（中）： 具有自对准陡肩极结构的磁写头及其制造方法
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申请号： US11228783申请日： 2005-09-15
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公开(公告)号： US07612964B2公开(公告)日： 2009-11-03
- 发明人: Daniel Wayne Bedell , Hieu Lam , Kim Y. Lee , Jyh-Shuey Lo
- 申请人： Daniel Wayne Bedell , Hieu Lam , Kim Y. Lee , Jyh-Shuey Lo
- 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： G11B5/187
- IPC分类号： G11B5/187
摘要：
A magnetic write head and method of manufacture thereof that has a first pole structure having a notched structure configured with a steep shoulder portion and a narrow vertical notch portion extending from the top of the steep shoulder portion. The write head also includes a second pole structure (P2) that has a very narrow width (track width) and that is self aligned with the narrow vertical notch structure of the first pole structure. The write head provides excellent magnetic properties including a very narrow track width and minimal side writing, while avoiding magnetic saturation of the poles.