High throughput manufacturing of thin film data recording disks

Details High throughput manufacturing of thin film data recording disks High throughput manufacturing of thin film data recording disks

1992-08-12

1997-05-20

Kiliman, Leszek

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428 653, 428 655, 428 656, 428694T, 428694TP, 428694SG, 428900, 360135, 369282, 369283, G11B 566

Patent

active

056310587

ABSTRACT:
According to the present invention, a blank of an aluminum alloy is partially cut so as to form several disks maintained in the blank by portions of the remaining uncut aluminum. This results in the disks being supported in the blank during formation of the thin films, yet easily separated from the blank into individual disks after the thin films have been deposited. Therefore, multiple disks can be processed during a single manufacturing step.

REFERENCES:
patent: 4711115 (1987-12-01), Sukonnik et al.
patent: 4870524 (1989-09-01), Coe
patent: 4887179 (1989-12-01), Coe
patent: 5063120 (1991-11-01), Edmonson et al.

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