Heat-assisted magnetic recording head with a near-field transducer having a multilayer near-field emitter
US11710506B1 · kind B1 · utility
3Cited by
37References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2022 |
| Grant date | Jul 25, 2023 |
| Priority date | — |
| Expiry date | Mar 28, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A heat-assisted magnetic recording head includes a near-field transducer including a plasmonic disk and a multilayer near-field emitter. The multilayer near-field emitter is configured to produce a hot spot on a proximal magnetic disk. The multilayer near-field emitter is disposed in a down-track direction relative to and coupled to the plasmonic disk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.