High density granular perpendicular recording media for mechanical reliability and corrosion resistance
US9418693B2 · kind B2 · utility
0Cited by
8References
20Claims
0Family size
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Key dates
| Filing date | Mar 30, 2015 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | Mar 30, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/851
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An embodiment of the invention relates to a perpendicular magnetic recording medium comprising (1) a substrate, (2) an interlayer comprising hexagonal columns and (3) a magnetic layer, wherein the magnetic layer is deposited applying a bias voltage to the substrate such that the magnetic layer comprises magnetic grains having substantially no sub-grains within the magnetic layer, and the magnetic layer has perpendicular magnetic anisotropy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.