System and method for providing a protective layer having a graded intermediate layer
US9805748B1 · kind B1 · utility
2Cited by
132References
13Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 24, 2014 |
| Grant date | Oct 31, 2017 |
| Priority date | — |
| Expiry date | Oct 22, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3173
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of providing an apparatus with a protective layer by simultaneously depositing carbon and seed material on the apparatus to form an intermediate layer, wherein the carbon and seed material have a percentage composition that varies as a function of the intermediate layer thickness; and then providing a diamond-like carbon (DLC) layer adjacent to the intermediate layer to produce the protective layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.