Invention Grant
- Patent Title: Conformal high moment side shield seed layer for perpendicular magnetic recording writer
- Patent Title (中): 用于垂直磁记录刻录机的保形高力侧屏蔽种子层
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Application No.: US14246821Application Date: 2014-04-07
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Publication No.: US09123358B1Publication Date: 2015-09-01
- Inventor: Feng Liu , Dehua Han , Yugang Wang , Zhigang Bai , Tao Pan
- Applicant: Western Digital (Fremont), LLC
- Applicant Address: US CA Fremont
- Assignee: Western Digital (Fremont), LLC
- Current Assignee: Western Digital (Fremont), LLC
- Current Assignee Address: US CA Fremont
- Main IPC: G11B5/11
- IPC: G11B5/11 ; G11B5/23 ; G11B5/48

Abstract:
A perpendicular magnetic recording writer for use in a data storage device, the recording transducer has a magnetic writer pole, a pole tip facing an air bearing surface (ABS). The pole tip has a pole face, leading side wall, a trailing side wall, a first side wall and a second side wall. A trailing side wall nonmagnetic gap layer on the trailing side wall, a first side wall nonmagnetic gap layer deposited on the first side wall, and a second side wall nonmagnetic gap layer deposited on the second side wall. A high magnetic moment seed layer is deposited on the trailing side wall nonmagnetic gap layer, the first side wall nonmagnetic gap layer, and the second side wall nonmagnetic gap layer. In other aspects of the invention shields are provided that have magnetic moments less than the magnetic moment of the seed layers.
Information query
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