Invention Grant
- Patent Title: Self aligned wrap around shield for perpendicular magnetic recording
- Patent Title (中): 自对准绕线屏蔽用于垂直磁记录
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Application No.: US11116753Application Date: 2005-04-27
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Publication No.: US07649712B2Publication Date: 2010-01-19
- Inventor: Quang Le , Nian-Xiang Sun , Howard Gordon Zolla
- Applicant: Quang Le , Nian-Xiang Sun , Howard Gordon Zolla
- 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
- Main IPC: G11B5/33
- IPC: G11B5/33

Abstract:
A write element for use in perpendicular magnetic recording. The write element including a write pole and a self aligned wrap around shield that can have a trailing shield gap thickness that is different from its side shield gap thickness. The materials making up the trailing shield gap and the side shield gaps can be different materials or can be the same material deposited in two different steps. The side or wrap around portions of the trailing shield can extend down to the level of the leading edge of the write pole or can terminate at some point between the levels of the leading and trailing edge to form a partial wrap around trailing shield.
Public/Granted literature
- US20060044682A1 Self aligned wrap around shield for perpendicular magnetic recording Public/Granted day:2006-03-02
Information query
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