Exchange break layer for heat-assisted magnetic recording media
US9218850B1 · kind B1 · utility
2Cited by
247References
19Claims
0Family size
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Key dates
| Filing date | Dec 23, 2014 |
| Grant date | Dec 22, 2015 |
| Priority date | — |
| Expiry date | Dec 23, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A heat-assisted magnetic recording (HAMR) medium having improved signal-to-noise ratio capabilities includes a high-temperature exchange break layer (EBL) inserted between magnetic recording layers, where the high-temperature exchange break layer material is capable of maintaining its chemical properties at temperatures exceeding 300° C. The high-temperature EBL may include a non-metallic compound including at least one of an oxide, a carbide, and a nitride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.