Rotational micro-actuator with a rotatable plate, head gimbal assembly and disk drive device with the same
US7768746B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2005 |
| Grant date | Aug 3, 2010 |
| Priority date | — |
| Expiry date | May 26, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/5552
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A head gimbal assembly includes a micro-actuator, a slider, and a suspension that supports the micro-actuator and the slider. The micro-actuator includes a metal frame including a top support to support the slider, a bottom support to connect to the suspension, and a pair of side arms that interconnect the top support and the bottom support. The top support includes a rotatable plate and connection arms that couple the rotatable plate to respective side arms. A PZT element is mounted to each of the side arms. Each PZT element is excitable to cause selective movement of the side arms. The suspension includes a load beam having a dimple that engages and supports the rotatable plate in use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.