Laser assisted magnetic recording apparatus and method
US6762977B1 · kind B1 · utility
21Cited by
14References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2000 |
| Grant date | Jul 13, 2004 |
| Priority date | — |
| Expiry date | Apr 16, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a hard disk drive laser assisted magnetic recording system including a semiconductor laser and magnetic write coil integrally formed into a slider. The slider preferably includes a perpendicular magnetic recording section adjacent a laser section. The laser section may form an air bearing surface of the slider. During recording operations, laser radiation from the laser section heats a region of the magnetic recording media in order to reduce its coercivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.