Method of manufacturing a hermetically sealed disk drive
US5454157A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 1994 |
| Grant date | Oct 3, 1995 |
| Priority date | — |
| Expiry date | Jan 10, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49904
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk drive having a hermetically sealed disk chamber capable of being filled with gas at pressures above ambient pressure with a specially designed connector assembly for use with the sealed chamber. Helium or nitrogen is injected into the sealed disk chamber. To decrease power consumption at high platter spin rates, the present invention advantageously utilizes a sealed disk chamber filled with helium to reduce tribological resistance forces associated with the surfaces of the spinning platters. Nitrogen is used to reduce oxidation of the disk platters. Special fixtures maintaining high position tolerance and connectors are designed to coupled the PC board controller of the disk drive unit to the components of the disk drive within the sealed disk chamber to eliminate connecting flexcircuits from the junction of the hermetically sealed chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.