Disk drive including a disk plate having a damping member
US6862156B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2003 |
| Grant date | Mar 1, 2005 |
| Priority date | — |
| Expiry date | Aug 28, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk drive includes a disk drive base and a spindle motor including a spindle motor hub rotatably coupled to the disk drive base. The disk drive further includes a disk having a disk surface disposed about the spindle motor hub. The disk drive further includes a cover attached to the disk drive base with the spindle motor and the disk enclosed within the cover and the disk drive base. The disk drive further includes a disk plate. The disk plate includes a plate body coupled to the disk drive base between the disk and the cover. The plate body extends substantially along the disk surface. The disk plate further includes a damping member disposed upon the plate body. The damping member includes a stiffener layer and a damping layer formed between the stiffener layer and the plate body for mitigating vibration of the plate body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.