Invention Grant
- Patent Title: HAMR head with near-field transducer (NFT) with trailing bevel
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Application No.: US17404924Application Date: 2021-08-17
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Publication No.: US11574647B1Publication Date: 2023-02-07
- Inventor: Mingjun Yu , Pradeep Senanayake
- 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
- Main IPC: G11B5/60
- IPC: G11B5/60 ; G11B5/31 ; G11B5/00

Abstract:
Disclosed herein are embodiments of a heat-assisted magnetic recording (HAMR) head that includes a near-field transducer (NFT) with a trailing bevel. Also disclosed are sliders and data storage devices comprising those HAMR heads, and methods of manufacturing HAMR heads with NFTs having trailing bevels. A HAMR head comprises a waveguide core, a main pole, and a NFT comprising a trailing beveled edge at an acute angle to an air-bearing surface (ABS) of the HAMR head. A method of fabricating a HAMR head comprises depositing material for a NFT, creating a trailing-side surface of the NFT, and creating a trailing beveled edge in the trailing-side surface of the NFT at the ABS, and forming a dielectric layer over the trailing beveled edge. The trailing beveled edge is at an acute angle to the ABS, and a remainder of the trailing-side surface of the NFT is substantially perpendicular to the ABS.
Public/Granted literature
- US20230059099A1 HAMR HEAD WITH NEAR-FIELD TRANSDUCER (NFT) WITH TRAILING BEVEL Public/Granted day:2023-02-23
Information query
IPC分类: