Suspension ring gimbal having forwardly extending torsion arms
US8446695B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2010 |
| Grant date | May 21, 2013 |
| Priority date | — |
| Expiry date | Apr 3, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/486
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
For decreased pitch and roll stiffness, a ring gimbal suspension for a hard disk drive has torsion arms that extend toward the distal end of the suspension as they extend inward from the gimbal outer arms toward the slider bond pad. The torsion arms connect to the slider bond pad at a location that is distal of the dimple contact point. The electrical circuit traces are generally free of stainless steel except where the circuit traces cross the torsion arms, at which point they are affixed to the torsion arms. The electrical circuit traces can include an outward meander away from the slider bond pad as the traces pass over the torsion arms, for additional reduction in stiffness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.