Invention Grant
- Patent Title: Perpendicular magnetic write head including high magnetic moment seed layer for trailing shield therein and/or method of making the same
- Patent Title (中): 包括用于后挡板的高磁矩种子层的垂直磁性写头和/或其制造方法
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Application No.: US12801904Application Date: 2010-06-30
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Publication No.: US08355222B2Publication Date: 2013-01-15
- Inventor: Tetsuya Mino , Naoto Matono , Ikuhito Onodera , Kazushi Nishiyama , Michitoshi Tsuchiya , Kenji Sasaki
- Applicant: Tetsuya Mino , Naoto Matono , Ikuhito Onodera , Kazushi Nishiyama , Michitoshi Tsuchiya , Kenji Sasaki
- Applicant Address: CN Hong Kong
- Assignee: SAE Magnetics (H.K.) Ltd.
- Current Assignee: SAE Magnetics (H.K.) Ltd.
- Current Assignee Address: CN Hong Kong
- Agency: Nixon & Vanderhye PC
- Main IPC: G11B5/11
- IPC: G11B5/11 ; G11B5/23
Abstract:
A perpendicular magnetic write head includes: a magnetic pole; a pair of nonmagnetic side gap layers provided on both sides in a track-width direction of the magnetic pole; a nonmagnetic trailing gap layer provided on a trailing side of the magnetic pole; a magnetic shield layer so provided as to surround the magnetic pole with both of the nonmagnetic side gap layer and the nonmagnetic trailing gap layer in between; and a magnetic seed layer formed between the nonmagnetic trailing gap layer and the magnetic shield layer, and having a saturation magnetic flux density higher than that of the magnetic shield layer. The magnetic seed layer is not formed between the nonmagnetic side gap layer and the magnetic shield layer.
Public/Granted literature
- US20120002326A1 Perpendicular Magnetic Write head and method of manufacturing the same Public/Granted day:2012-01-05
Information query
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