Micro-actuator, head gimbal assembly and disk drive unit with the same
US7554773B2 · kind B2 · utility
12Cited by
22References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2005 |
| Grant date | Jun 30, 2009 |
| Priority date | — |
| Expiry date | Feb 26, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/4853
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A HGA of the invention includes a slider; a micro-actuator to adjust the position of the slider; and a suspension to load the slider and the micro-actuator. The micro-actuator includes two side arms; a load plate for supporting the slider, which is connected with at least one of the side arms; a piezoelectric element connected with the side arms; and a base shaft to couple with the suspension, which is connected with the side arms and positioned between the load plate and the piezoelectric element. The invention also discloses a disk drive unit using such a HGA.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.