Squeeze for screen printer

Details Squeeze for screen printer Squeeze for screen printer

2007-02-22

2010-06-29

Yan, Ren (Department: 2854)

Printing

Stenciling

Traveling-inker machines

C101S114000

Reexamination Certificate

active

07743701

ABSTRACT:
Disclosed is a squeeze for a screen printer. The present invention provides a squeeze for a screen printer, which coats a printed circuit board with an adhesive paste while moving parallel over a metal mask on the printed circuit board, the printed circuit board being open through an opening of the metal mask, the squeeze including a solvent storage unit for storing solvents; and solvent discharging holes for discharging the solvents, stored in the solvent storage unit, to an adhesive paste. Accordingly, the squeeze for a screen printer of the present invention may be useful to prevent a dog ear phenomenon, namely that an adhesive paste layer is asymmetrically formed in an indented manner, by controlling a viscosity of an adhesive paste by discharging a solvent onto an adhesive paste layer that comes in contact with the squeeze when the adhesive paste layer is formed in the printed circuit board.

REFERENCES:
patent: 6684766 (2004-02-01), Macraild et al.
patent: 6698347 (2004-03-01), Miyahara et al.
patent: 6725769 (2004-04-01), Williams
patent: 6755127 (2004-06-01), Miyahara et al.
patent: 2547018 (1996-10-01), None

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