Shear mode multilayered collocated micro-actuator for dual-stage servo controllers in disk drives
US6704158B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2001 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | May 13, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/5552
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A head gimbal assembly for a disk drive. The head gimbal assembly includes a load beam defining a longitudinal axis. The head gimbal assembly further includes a flexure with a portion of said flexure being attached to said load beam. The head gimbal assembly further includes a slider including a read/write head. The head gimbal assembly further includes a collocated microactuator which connects between said flexure and said slider for providing pure or nearly pure lateral movement to said slider in a plane of motion that includes the longitudinal axis. The collocated microactuator is a shear mode piezoelectric motor and disposed between the slider and the load beam along an axis disposed orthogonal to the longitudinal axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.