NiFeX-based seed layer for magnetic recording media
US9685184B1 · kind B1 · utility
2Cited by
308References
17Claims
0Family size
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Key dates
| Filing date | Sep 25, 2014 |
| Grant date | Jun 20, 2017 |
| Priority date | — |
| Expiry date | Nov 16, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/676
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A recording medium having improved signal-to-noise ratio (SNR) capabilities includes a NiFeX-based magnetic seed layer over a soft magnetic underlayer, where X comprises an element that is soluble in and has a higher melting point than Ni. X may be selected from a group of elements, including ruthenium (Ru), which may facilitate growth of smaller grains and distributions in the corresponding magnetic recording layer(s).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.