Sputtered cobalt oxide for perpendicular magnetic recording medium with low media noise
US8394243B1 · kind B1 · utility
71Cited by
23References
21Claims
0Family size
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Key dates
| Filing date | Sep 30, 2008 |
| Grant date | Mar 12, 2013 |
| Priority date | — |
| Expiry date | Jul 15, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/115
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Method of incorporating atomic oxygen into a magnetic recording layer by sputtering a target containing an oxide of cobalt. The oxide of cobalt may be sputtered to provide a readily dissociable source of oxygen which may increase the concentration of free cobalt atoms (Co) in the magnetic recording layer and also increase oxide content in the magnetic recording layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.