Hybrid coating for magnetic heads
US7327535B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 2003 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | Jan 18, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method for providing corrosion protection for a magnetic read/write head is disclosed. A monolayer surface coating is applied to cover those portions of the under layer of a magnetic read/write head not already covered by a previously applied diamond-like coating. This allows for a thinner diamond like coating than previously applied in the art. The monolayer surface coating can be a self-assembled monolayer, such as an organosilicon for hydroxylated surfaces or carboxylic acids for aluminum or other metal oxides. Alternatively, the monolayer surface coating can be directly applied to the under layer with no diamond-like coating being present. The monolayer surface coating can be applied by a surface immersion process or by a vacuum coating process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.