Squeegee device for screen printing processes

Details Squeegee device for screen printing processes Squeegee device for screen printing processes

1996-02-20

1997-10-28

Funk, Stephen R.

Printing

Stenciling

Traveling-inker machines

101124, B41F 1544

Patent

active

056808143

ABSTRACT:
A screen printing device for screen printing a thick film ink through a screen so as to form a highly-defined thick film on a surface of a microelectronics circuit. The screen printing device achieves the above by bypassing excess ink that would otherwise accumulate ahead of the squeegee device, thereby limiting the pressure lead length ahead of the device during the screen printing process. As such, the screen is able to form an adequate seal with the surface of the substrate to prevent ink from bleeding out under the screen, i.e., between the screen and substrate. The result is a well-defined thick film on the substrate, and avoids the necessity of stopping the printing operation in order to remove ink from the lower surface of the screen. The screen printing device enables a method by which well-defined films can be readily deposited at high throughput levels, without necessitating additional procedures, equipment and techniques that might otherwise further complicate the printing process.

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