Disk drive head suspension assembly having a DLC coating between dimple and tongue
US8760814B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2013 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Feb 26, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/4833
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A suspension assembly for a head gimbal assembly of a disk drive includes a laminated flexure that includes a tongue for attachment of a read head. The suspension assembly includes a load beam that, in a first aspect of the present invention has a protruding dimple that contacts the tongue. In this aspect of the invention, a diamond-like carbon (DLC) coating is disposed between and contacting the dimple and the tongue. For example, the DLC may be disposed on the tongue at the location of contact with the load beam dimple. Alternatively, in a second aspect of the present invention, the tongue may have a protruding dimple that contacts the load beam. In this aspect of the invention, a DLC coating is disposed between and contacting the dimple and the load beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.