Invention Grant
- Patent Title: Magnetic recording head with trailing shield having multiple throat-heights
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Application No.: US18082730Application Date: 2022-12-16
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Publication No.: US11894028B2Publication Date: 2024-02-06
- Inventor: Quan-Chiu Harry Lam , Mark H. Burkhardt , El-Amine Salhi
- Applicant: Western Digital Technologies, Inc.
- Applicant Address: US CA San Jose
- Assignee: Western Digital Technologies, Inc.
- Current Assignee: Western Digital Technologies, Inc.
- Current Assignee Address: US CA San Jose
- Agency: PATTERSON + SHERIDAN, LLP
- Agent Steven H. VerSteeg
- The original application number of the division: US17324679 2021.05.19
- Main IPC: G11B5/31
- IPC: G11B5/31 ; G11B5/11 ; G11B5/127

Abstract:
The present disclosure generally relates to data storage devices, and more specifically, to a magnetic media drive employing a magnetic recording head. The magnetic recording head comprises a main pole and a trailing shield disposed adjacent to the main pole. A recessed edge of the trailing shield has throat heights varying in the cross-track direction. In one embodiment, the central portion of the trailing shield has a first throat height greater than a second throat height of outer portions of the trailing shield. The trailing shield having varying throat heights in the cross-track direction strengthens the writing capability or improves the XTI of the magnetic recording head.
Public/Granted literature
- US20230118634A1 Magnetic Recording Head with Trailing Shield Having Multiple Throat-Heights Public/Granted day:2023-04-20
Information query
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