Squeegee for thick film screen printing processes

Details Squeegee for thick film screen printing processes Squeegee for thick film screen printing processes

1994-07-25

1995-09-12

Burr, Edgar S.

Printing

Stenciling

Traveling-inker machines

101114, B41F 1542

Patent

active

054489482

ABSTRACT:
An improved squeegee for screen printing a thick film ink onto a substrate of a microelectronics circuit in order to form a thick film on the substrate. The squeegee is specifically configured to eliminate the creation of voids in a thick film deposited using the squeegee by enhancing the flow characteristics of the thick film ink as it is forced through a printing screen by the squeegee. Improved flow characteristics are achieved be appropriately configuring the cross-sectional profile of the squeegee in order to localize the printing forces on the ink at the working edge of the squeegee, in order to prevent ink ahead of the working edge from prematurely filling the openings in the screen.

REFERENCES:
patent: 3071069 (1963-01-01), Sherman
patent: 4665822 (1987-05-01), Plesinger et al.
patent: 4817524 (1989-04-01), Riemer
patent: 4989512 (1991-02-01), Lindstrom et al.
patent: 5027703 (1991-07-01), Hancy

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