Tuned mass actuator arms for decreasing track misregistration in a depopulated head suspension disk drive
US7636222B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 2006 |
| Grant date | Dec 22, 2009 |
| Priority date | — |
| Expiry date | Jan 1, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/4833
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk drive includes a storage disk having a data surface, a head suspension assembly, an actuator assembly and an E-block. The actuator assembly moves the E-block relative to the storage disk. The E-block includes a first actuator arm and a second actuator arm. The first actuator arm supports the head suspension assembly while the second actuator arm supports no head suspension assemblies. The first actuator arm has a first upper surface having a first configuration. The second actuator arm has a second upper surface having a second configuration that is different than the first configuration and is tuned to decrease off-track displacement of the data transducer. In non-exclusive alternative embodiments, the actuator arms have substantially similar thicknesses, but have different perimeters, shapes, volumes and/or other properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.