Heat-assisted magnetic recording head including internal mirrors of first and second inclined surfaces
US8243560B2 · kind B2 · utility
4Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2009 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Nov 18, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49032
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A heat-assisted magnetic recording head has an internal mirror that includes a reflecting film support body and a reflecting film. The internal mirror reflects light that comes from above a waveguide so that the reflected light travels through the waveguide toward a medium facing surface. The reflecting film support body includes first and second inclined surfaces. The reflecting film includes first and second portions that are located on the first and second inclined surfaces, respectively. The step of forming the reflecting film support body includes two-taper etching operations to be performed on an initial support body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.