Invention Grant
- Patent Title: Magnetic recording head with non-magnetic conductive structure
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Application No.: US17229560Application Date: 2021-04-13
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Publication No.: US11276422B2Publication Date: 2022-03-15
- Inventor: Quang Le , Michael Kuok San Ho , Suping Song , Goncalo Marcos Baião De Albuquerque
- 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
- Main IPC: G11B5/127
- IPC: G11B5/127 ; G11B5/31 ; G11B5/39 ; G11B5/00

Abstract:
The present disclosure generally relates to data storage devices, and more specifically, to a magnetic media drive employing a magnetic recording head. The head includes a trailing shield, a main pole, an STO disposed between the trailing shield and the main pole, and a non-magnetic conductive structure (or non-magnetic conductive layers) adjacent to the main pole and in contact with the STO. The non-magnetic conductive structure provides additional paths for electrical currents to flow to the STO. The non-magnetic conductive structure enables higher current density to the STO without creating hot spots at the MFS. Maximum current efficiency and uniformity can be achieved with the non-magnetic conductive structure.
Public/Granted literature
- US20210233559A1 Magnetic Recording Head With Non-Magnetic Conductive Structure Public/Granted day:2021-07-29
Information query
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