Invention Grant
- Patent Title: Magnetic recording write apparatus having a stepped conformal trailing shield
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Application No.: US14953982Application Date: 2015-11-30
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Publication No.: US09754611B1Publication Date: 2017-09-05
- Inventor: Feng Liu , Zhanjie Li , Zhigang Bai , Yi Wang
- 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
- Agency: Foley & Lardner LLP
- Main IPC: G11B5/11
- IPC: G11B5/11 ; G11B5/31 ; G11B5/127

Abstract:
A magnetic write apparatus has a media-facing surface (MFS), a pole having leading and trailing surfaces, a trailing shield having a pole-facing surface, a write gap and coil(s). The pole's trailing surface has a portion adjoining the MFS and oriented at a nonzero, acute bevel angle from a direction perpendicular to the MFS. The pole-facing surface includes a first portion adjoining the MFS and oriented at a first angle substantially the same as the bevel angle, a second portion oriented at a second angle greater than the first trailing shield angle, and a third portion oriented at a third angle substantially the same as the first angle. The write gap has first, second and third thicknesses adjacent to the first, second and third portions of the pole-facing surface, respectively. The first thickness is constant. The second thickness varies. The third thickness is constant and greater than the first thickness.
Information query
IPC分类: