Recording head for heat assisted magnetic recording with diffusion barrier surrounding a near field transducer
US8339740B2 · kind B2 · utility
74Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2011 |
| Grant date | Dec 25, 2012 |
| Priority date | — |
| Expiry date | Jul 20, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus includes a near field transducer positioned adjacent to an air bearing surface, a first magnetic pole, a heat sink positioned between the first magnetic pole and the near field transducer, and a diffusion barrier positioned between the near field transducer and the first magnetic pole. The diffusion barrier can be positioned adjacent to the magnetic pole or the near field transducer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.