Seed structure for perpendicular magnetic recording media
US9990940B1 · kind B1 · utility
5Cited by
260References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2014 |
| Grant date | Jun 5, 2018 |
| Priority date | — |
| Expiry date | Oct 22, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/7369
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data storage medium having a seed structure formed of a first seed layer comprising a nickel alloy NiY, where Y is an element selected from Al, B, Fe, Nb, W, and Co, and a second seed layer represented by NiWAX, where A is an element selected from Al, B, Fe, Nb, and Co, and X is either B, Si, Ti, Nb, V, Cr, Ru, or an oxide, with the second seed layer being disposed on the first seed layer; and a magnetic recording layer above the seed structure. In addition, a method for manufacturing a data storage medium containing the aforementioned seed structure is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.