Invention Grant
- Patent Title: Magnetic heads having a graded domain control film and methods of manufacture thereof
- Patent Title (中): 具有梯度域控制膜的磁头及其制造方法
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Application No.: US12957229Application Date: 2010-11-30
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Publication No.: US08284527B2Publication Date: 2012-10-09
- Inventor: Nobuo Yoshida , Masato Shiimoto , Kenichi Akita , Kan Yasui
- Applicant: Nobuo Yoshida , Masato Shiimoto , Kenichi Akita , Kan Yasui
- Applicant Address: NL Amsterdam
- Assignee: Hitachi Global Storage Technologies Netherlands B.V.
- Current Assignee: Hitachi Global Storage Technologies Netherlands B.V.
- Current Assignee Address: NL Amsterdam
- Agency: Zilka-Kotab, PC
- Priority: JP2009-277518 20091207
- Main IPC: G11B5/39
- IPC: G11B5/39

Abstract:
A magnetic head, according to one embodiment, includes a sensor film, a sensor cap film provided above the sensor film, a pair of shields including an upper magnetic shield and a lower magnetic shield which serve as electrodes that pass current in a film thickness direction of the sensor film, a track insulating film contacting both sides of the sensor film in the track width direction, a graded domain control film arranged on both sides in the track width direction of the sensor film adjacent the track insulating film, and an element height direction insulating film positioned on an opposite side of the sensor film relative to an air-bearing surface, wherein an edge position of the element height direction insulating film adjacent the sensor film on the air-bearing surface side is substantially the same as an edge position of the sensor cap film in the element height direction.
Public/Granted literature
- US20110134564A1 MAGNETIC HEADS HAVING A GRADED DOMAIN CONTROL FILM AND METHODS OF MANUFACTURE THEREOF Public/Granted day:2011-06-09
Information query
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