Method of manufacturing a hermetically sealed disk drive

Details Method of manufacturing a hermetically sealed disk drive Method of manufacturing a hermetically sealed disk drive

1994-01-10

1995-10-03

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

29467, 29469, 360 9703, G11B 542

Patent

active

054541573

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.

REFERENCES:
patent: 5025335 (1991-06-01), Stefansky
patent: 5293282 (1994-03-01), Squires et al.

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