The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 06, 2024
Filed:
Aug. 20, 2022
Western Digital Technologies, Inc., San Jose, CA (US);
Takuya Matsumoto, San Jose, CA (US);
Western Digital Technologies, Inc., San Jose, CA (US);
Abstract
A heat-assisted magnetic recording (HAMR) head has a slider with a gas-bearing-surface (GBS). The slider supports a near-field transducer (NFT) with an output tip at the GBS and a main magnetic pole that has a recess in the NFT-facing surface that contains plasmonic material. The plasmonic recess has a front edge at the GBS that has a cross-track width equal to or less than the cross-track width of the widest portion of the NFT output tip, and a back edge recessed from the GBS. A thermal shunt is located between the NFT and the main pole to allow heat to be transferred away from the optical spot generated by the NFT output tip, and is in contact with a region of the plasmonic recess near the back edge.