Systems and methods for providing thermal barrier bilayers for heat assisted magnetic recording media
US8867322B1 · kind B1 · utility
14Cited by
230References
25Claims
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Key dates
| Filing date | Jul 1, 2013 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Jul 1, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/82
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for providing thermal barrier bilayers for heat assisted magnetic recording (HAMR) media are provided. One such HAMR medium includes a substrate, a heat sink layer on the substrate, a thermal barrier bilayer on the heat sink layer, the bilayer comprising a first thermal barrier layer on the heat sink layer and an amorphous underlayer on the first thermal barrier layer, and a magnetic recording layer on the amorphous underlayer, wherein a thermal conductivity of the first thermal barrier layer is less than a thermal conductivity of the amorphous underlayer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.