Apparatus and method for repeatable transfers of liquid deposits

Details Apparatus and method for repeatable transfers of liquid deposits Apparatus and method for repeatable transfers of liquid deposits

1975-11-21

1977-09-13

Newton, Dorsey

Coating apparatus

Solid applicator contacting work

With work-handling or work-supporting

118263, B05C 102

Patent

active

040474984

ABSTRACT:
A liquid pick-up, transfer and deposit system achieves controlled thickness, reproducible deposits of viscous liquid, such as epoxy, on a substrate, for subsequent attachment of microscopic size dies, by maintaining a layer of uniform, thickness of the viscous coating in a receptacle and moving an applicator stamp, back and forth between the receptacle and a substrate constituting the workpiece. The deposit area and thickness of coating on the tip of the applicator is kept uniform by a gravity actuated plunger yieldable rearwardly opposed only by its own weight. The plunger tip accommodates itself to the surface it contacts.

REFERENCES:
patent: 2510274 (1950-06-01), Barry et al.
patent: 3025830 (1962-03-01), Vierthaler et al.
patent: 3706274 (1972-12-01), Coville

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