Perpendicular magnetic recording media with oxide-containing exchange coupling layer
US8747628B2 · kind B2 · utility
1Cited by
8References
20Claims
0Family size
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Key dates
| Filing date | Apr 3, 2012 |
| Grant date | Jun 10, 2014 |
| Priority date | — |
| Expiry date | Apr 3, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/672
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method according to one embodiment includes forming a high Ku first oxide magnetic layer above a substrate by sputtering; forming a low Ku second oxide magnetic layer above the first oxide magnetic layer by sputtering; forming an exchange coupling layer of CoCrPt-oxide above the second oxide magnetic layer; and forming a magnetic cap layer above the exchange coupling layer. Additional systems and methods are also presented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.