Patent · US Active

Near field transducers (NFTS) including barrier layer and methods of forming

US9824709B2 · kind B2 · utility

0Cited by

17References

18Claims

0Family size

Assignee

Seagate Technology LLC · US

Inventors

Martin Blaber · Plymouth, US
Jie Gong · Eden Prairie, US
Dimitar V. Dimitrov · Edina, US
Steve Riemer · Minneapolis, US
Michael C. Kautzky · Eagan, US
Tong Zhao · Eden Prairie, US
Yongjun Zhao · Beijing, CN

Key dates

Filing date	May 27, 2016
Grant date	Nov 21, 2017
Priority date	—
Expiry date	May 27, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG11B2005/0021
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Devices having an air bearing surfaces (ABS), the devices including a near field transducer (NFT) that includes a disc having a front edge; a peg, the peg having a front surface at the air bearing surface of the apparatus, an opposing back surface, a top surface that extends from the front surface to the back surface, two side surfaces that expend from the front surface to the back surface and a bottom surface that extends from the front surface to the back surface; and a barrier layer, the barrier layer separating at least the back surface of the peg from the disc and the barrier layer having a thickness from 10 nm to 50 nm.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.