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: US11372259申请日: 2006-03-10
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公开(公告)号: US07609479B2公开(公告)日: 2009-10-27
- 发明人: Yoshitaka Sasaki , Hiroyuki Itoh , Dong-Hong Li , Joseph Smyth , Lijie Guan , Yaw-Shing Tang
- 申请人: Yoshitaka Sasaki , Hiroyuki Itoh , Dong-Hong Li , Joseph Smyth , Lijie Guan , Yaw-Shing Tang
- 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: G11B5/127
- IPC分类号: G11B5/127
摘要:
A pole layer has an end face located in a medium facing surface, allows a magnetic flux corresponding to a magnetic field generated by a coil to pass therethrough, and generates a write magnetic field for writing data on a recording medium by using a perpendicular magnetic recording system. A shield incorporates: a first layer having an end face located in a region of the medium facing surface forward of the end face of the pole layer along the direction of travel of the recording medium; a second layer disposed in a region sandwiching the pole layer with the first layer; a first coupling portion coupling the first layer to the second layer without touching the pole layer; and a second coupling portion coupling the pole layer to the second layer and located farther from the medium facing surface than the first coupling portion.
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