Apparatus for through hole substrate printing

Details Apparatus for through hole substrate printing Apparatus for through hole substrate printing

1987-07-22

1988-10-25

McIntosh, John P.

Coating apparatus

Program, cyclic, or time control

Having prerecorded program medium

118 50, 118712, 118408, B05C 700

Patent

active

047795654

ABSTRACT:
A method and apparatus for printing through holes in ceramic substrates and the like. The substrate is held in position by means of a vacuum applied to an outer peripheral surface portion thereof. The deposited substance is pulled through the holes in the substrate by means of a closely regulated vaccuum applied only to an inner surface portion, the inner and outer vacuum areas being separated in a holder device by means of O-rings. A pressure-time profile which appears in a plenum closely adjacent to the inner chamber may be compared to a previously generated pressure-time profile reference and used to accept or reject parts.

REFERENCES:
patent: 3357856 (1967-12-01), Ragan et al.
patent: 3604391 (1971-09-01), Mallia
patent: 4278706 (1981-07-01), Barry
patent: 4478882 (1984-10-01), Roberto
patent: 4554732 (1985-11-01), Sadlo et al.
Advertising brochure on Presco CP-885 Screen Printer.

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