Hybrid near-field transducer for heat assisted magnetic recording
US8391108B2 · kind B2 · utility
26Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2010 |
| Grant date | Mar 5, 2013 |
| Priority date | — |
| Expiry date | May 3, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus includes a planar waveguide having a core layer and a cladding layer adjacent to the core layer, the waveguide being shaped to direct light to a focal point; a magnetic pole adjacent to the cladding layer; and a near-field transducer positioned adjacent to the focal point, wherein the near-field transducer includes an enlarged portion and a peg having a first end positioned adjacent to an end of the waveguide and a second end positioned adjacent to a side of the enlarged portion. A data storage device that includes the apparatus is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.