Heat-assisted magnetic recording head and method of manufacturing the same
US7710686B2 · kind B2 · utility
30Cited by
2References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2006 |
| Grant date | May 4, 2010 |
| Priority date | — |
| Expiry date | Nov 11, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A heat-assisted magnetic recording head (HAMR) head includes a magnetic recording head including a recording pole for applying a magnetic recording field on a magnetic recording medium and a return pole magnetically connected to the recording pole to form a magnetic path, a light source for emitting light, and an optical transmission module including an photonic crystal waveguide disposed at a side of the magnetic recording head to guide light incident from the light source and a nano aperture for enhancing an optical field by varying an intensity distribution of the light guided through the photonic crystal waveguide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.