Mask and pressure block for ultra thin work pieces

Details Mask and pressure block for ultra thin work pieces Mask and pressure block for ultra thin work pieces

1986-08-22

1988-11-01

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51283R, B24B 3704

Patent

active

047809914

ABSTRACT:
A mask for use in conjunction with a lapping platen for working an ultra thin work piece with the mask formed to provide circumferentially arranged open receptive areas corresponding to the configuration of the work piece together with a pressure block of identical configuration to the receptacle openings and the work piece for maintaining the same in a controlled flatness upon the rotating lapping platen of a lapping machine.

REFERENCES:
patent: 2842906 (1958-07-01), Carter et al.
patent: 3570188 (1971-03-01), Ebner
patent: 4519168 (1985-05-01), Cesna

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