发明授权
US08444866B1 Method and system for providing a perpendicular magnetic recording pole with a multi-layer side gap
有权
用于提供具有多层侧面间隙的垂直磁记录极的方法和系统
- 专利标题: Method and system for providing a perpendicular magnetic recording pole with a multi-layer side gap
- 专利标题(中): 用于提供具有多层侧面间隙的垂直磁记录极的方法和系统
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申请号: US12886999申请日: 2010-09-21
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公开(公告)号: US08444866B1公开(公告)日: 2013-05-21
- 发明人: Lijie Guan , Changqing Shi , Ming Jiang , Yun-Fei Li , Ying Hong
- 申请人: Lijie Guan , Changqing Shi , Ming Jiang , Yun-Fei Li , Ying Hong
- 申请人地址: US CA Fremont
- 专利权人: Westen Digital (Fremont), LLC
- 当前专利权人: Westen Digital (Fremont), LLC
- 当前专利权人地址: US CA Fremont
- 主分类号: B44C1/22
- IPC分类号: B44C1/22
摘要:
A method for fabricating a magnetic transducer having a nonmagnetic intermediate layer is described. A trench is provided in the intermediate layer. The trench has a profile and location corresponding to a pole. A first nonmagnetic gap layer is provided. At least part of the first nonmagnetic gap layer resides in the trench. A pole including magnetic material(s) is provided. At least part of the pole resides in the trench and on the part of the nonmagnetic layer in the trench. At least part of the intermediate layer adjacent to the pole is removed and a second nonmagnetic gap layer provided. The second nonmagnetic gap layer is thicker than the first nonmagnetic gap layer. Part of the second nonmagnetic layer and part of the first nonmagnetic layer adjacent to the pole form a side gap. A side shield, a gap, and a top shield are also provided.
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