Invention Grant
- Patent Title: Devices including a near field transducer (NFT) including peg and disc from different materials
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Application No.: US15864480Application Date: 2018-01-08
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Publication No.: US10431244B2Publication Date: 2019-10-01
- Inventor: Martin Blaber , Tong Zhao , Michael C. Kautzky , Justin Brons , John C. Duda , Yuhang Cheng , Michael A. Seigler
- Applicant: SEAGATE TECHNOLOGY LLC
- Applicant Address: US CA Cupertino
- Assignee: Seagate Technology LLC
- Current Assignee: Seagate Technology LLC
- Current Assignee Address: US CA Cupertino
- Agency: Mueting, Raasch & Gebhardt, P.A.
- Main IPC: G11B5/09
- IPC: G11B5/09 ; G11B5/31 ; G11B5/00

Abstract:
Devices that have an air bearing surface (ABS), the device includes a near field transducer (NFT) that includes a disc configured to convert photons incident thereon into plasmons; and a peg configured to couple plasmons coupled from the disc into an adjacent magnetic storage medium, wherein the disc includes a disc material that includes gold or an alloy thereof and the peg includes a peg material, wherein the disc material is different from the peg material and wherein the peg material has a real part of the permittivity that is not greater than that of gold.
Public/Granted literature
- US20180144765A1 DEVICES INCLUDING A NEAR FIELD TRANSDUCER (NFT) INCLUDING PEG AND DISC FROM DIFFERENT MATERIALS Public/Granted day:2018-05-24
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