Electrical contact for an energy-assisted magnetic recording laser sub-mount
US8837261B1 · kind B1 · utility
2Cited by
15References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2013 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Aug 27, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Approaches to an electrical contact to electrically connect a laser module and a suspension that houses a head slider, in the context of a hard disk drive, involves a laser sub-mount electrical contact that includes a metal barrier layer underneath an electrode layer, where the barrier layer material has a lower heat transfer coefficient than the sub-mount material. Consequently, during the soldering process the diffusion of heat to the sub-mount is inhibited and the wettability of the solder is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.