Reducing thermal protrusion of a near field transducer in an energy assisted magnetic recording head
US8077418B1 · kind B1 · utility
166Cited by
11References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2009 |
| Grant date | Dec 13, 2011 |
| Priority date | — |
| Expiry date | Jun 16, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49048
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods of fabricating an energy-assisted magnetic recording (EAMR) head to compensate for a heat-induced protrusion of a near field transducer formed therein are disclosed. The methods can include applying optical power to the near field transducer to generate heat therein. The near field transducer protrudes beyond an air bearing surface of the EAMR head by the generated heat. The methods can further include removing a protruded portion of the near field transducer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.