Oxide magnetic recording layers for perpendicular recording media
US7862913B2 · kind B2 · utility
1Cited by
15References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2006 |
| Grant date | Jan 4, 2011 |
| Priority date | — |
| Expiry date | Jul 29, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/7369
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An improved structure for the construction of perpendicular recording media is disclosed. The structure includes a perpendicular recording layer with at least two oxide sublayers or a lower sublayer of a non-oxide. One structure includes an upper sublayer comprised of a Silicon-oxide, while a lower sublayer is comprised of a Tantalum-oxide. The structures provide for increased coercivity and corrosion resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.