System and method for improving corrosion resistance of magnetic media
US7244521B2 · kind B2 · utility
4Cited by
5References
13Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 19, 2003 |
| Grant date | Jul 17, 2007 |
| Priority date | — |
| Expiry date | Jun 13, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/82
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A system and method for corrosion problems in magnetic media resulting from moisture penetrating through the carbon layer into the magnetic layer by diffusion or other methods are overcome by processing the carbon overcoat to stop and/or inhibit the moisture penetration. The process involves removing moisture channels from protective overcoats of thin film magnetic media by irradiating the protective overcoat with ultraviolet (UV) radiation in an inert hydrophobic chemical environment. Afterwards, the thin film magnetic media can be removed into ambient atmosphere where it is coated with a lubricant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.