发明授权
- 专利标题： Magnetic head for perpendicular magnetic recording and method of manufacturing same
- 专利标题（中）： 用于垂直磁记录的磁头及其制造方法
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申请号： US11896705申请日： 2007-09-05
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公开(公告)号： US07924528B2公开(公告)日： 2011-04-12
- 发明人: Yoshitaka Sasaki , Hiroyuki Itoh , Hironori Araki , Shigeki Tanemura , Kazuo Ishizaki , Takehiro Horinaka
- 申请人： Yoshitaka Sasaki , Hiroyuki Itoh , Hironori Araki , Shigeki Tanemura , Kazuo Ishizaki , Takehiro Horinaka
- 申请人地址： US CA Milpitas
- 专利权人： Headway Technologies, Inc.
- 当前专利权人： Headway Technologies, Inc.
- 当前专利权人地址： US CA Milpitas
- 代理机构： Oliff & Berridge, PLC
- 主分类号： G11B5/31
- IPC分类号： G11B5/31
摘要：
A top surface of a pole layer of a magnetic head includes: a first portion having a first edge located in a medium facing surface and a second edge opposite thereto; and a second portion located farther from the medium facing surface than the first portion and connected to the first portion at the second edge. The distance from a substrate to an arbitrary point on the first portion increases with increasing distance from the medium facing surface to the arbitrary point. The angle of inclination of the first portion taken at the arbitrary point with respect to a direction perpendicular to the medium facing surface increases stepwise or continuously with increasing distance from the medium facing surface to the arbitrary point. The angle of inclination taken at the first edge is greater than zero degree. The second portion extends in a direction substantially perpendicular to the medium facing surface.
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