Ultra-thin seed layer for multilayer superlattice magnetic recording media
US6743503B1 · kind B1 · utility
39Cited by
17References
20Claims
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Key dates
| Filing date | Aug 29, 2000 |
| Grant date | Jun 1, 2004 |
| Priority date | — |
| Expiry date | Sep 6, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/265
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Improved multilayer magnetic superlattice structures, such as (Co/Pt)n and (Co/Pd)n, having predetermined, very high perpendicular magnetic coercivities are formed by sputter deposition of predetermined thickness, ultra-thin seed layers on the substrate prior to formation thereon of the superlattice structure by sputtering at at least a predetermined minimum sputtering gas pressure. The multilayer magnetic superlattice structures are advantageously utilized in the formation of thermally stable, perpendicular magnetic recording (MR) media having very high areal recording densities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.