Devices including a near field transducer (NFT) including peg and disc from different materials
US9865283B2 · kind B2 · utility
9Cited by
26References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 2016 |
| Grant date | Jan 9, 2018 |
| 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 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.