Method and apparatus for machining substrate plates for magnetic

Details Method and apparatus for machining substrate plates for magnetic Method and apparatus for machining substrate plates for magnetic

1993-08-09

1994-08-30

Bishop, Steven C.

Chucks or sockets

Vacuum

511315, 51235, 269 21, 279158, B25B 1100

Patent

active

053420675

ABSTRACT:
This invention relates to a method and apparatus for retaining disk-like structures, such as magnetic memory substrate plates, or disks, during machining, cutting, or grinding operations. A fluid is applied to one surface of the disk to retain the other surface of the disk against a chuck at a force which is sufficient to maintain the disk against the chuck during the operations.

REFERENCES:
patent: 3082013 (1963-03-01), Thielenhaus
patent: 3599377 (1971-08-01), Dartnell
patent: 3729206 (1973-04-01), Cachon et al.
patent: 3964355 (1976-06-01), Daniels
patent: 4603867 (1986-08-01), Babb et al.
patent: 4671145 (1987-06-01), Fehrenbach et al.
patent: 4787787 (1988-11-01), Hopwell et al.

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