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:
Jul. 12, 2022
Filed:
Jan. 14, 2021
Seagate Technology Llc, Fremont, CA (US);
Chubing Peng, Eden Prairie, MN (US);
Seagate Technology LLC, Fremont, CA (US);
Abstract
A recording head has a light source that emits light at a wavelength in a wavelength range of 260 nm to 460 nm inclusive. A slider body of the light source includes a magnetic pole extending to a media-facing surface of the recording head and integrated photonics that deliver the light to a recording medium. The integrated photonics include a waveguide that couples the light from the light source to the media-facing surface of the slider and a near-field transducer coupled to receive the light from the waveguide. The near-field transducer has a surface plasmon plate and a peg extending from the surface plasmon plate. The surface plasmon plate is formed of a first material having a first plasmonic quality factor (Q-factor) above 5 in the wavelength range, the peg formed of a second material having a second Q-factor above 1.2 in the wavelength range.