Waveguide cladding layer with transparent heat sink for heat-assisted magnetic recording device
US9251830B1 · kind B1 · utility
12Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 2015 |
| Grant date | Feb 2, 2016 |
| Priority date | — |
| Expiry date | May 19, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus comprises a slider of a magnetic recording head having an air bearing surface (ABS), a write pole terminating at or near the ABS, and a near-field transducer (NFT) adjacent the write pole. A light delivery arrangement extends through the slider and terminates at the ABS. The light delivery arrangement is configured to communicate light through the slider and to the NFT. A transparent heat sink layer abuts a terminal end portion of the light delivery arrangement and terminates at the ABS. The heat sink layer has a thermal conductivity greater than that of the light delivery arrangement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.