Paste applicator

Details Paste applicator Paste applicator

1993-09-29

1995-05-16

Warden, Robert J.

Coating apparatus

Control means responsive to a randomly occurring sensed...

Sampling of associated base

118670, 118680, 118679, 118712, B05C 1110

Patent

active

054156939

ABSTRACT:
A paste applicator for drawing a paste pattern on a substrate has X- and Y-axis tables, on which the substrate is mounted, and a paste reservoir tube, a nozzle, a nozzle support and an optical displacement meter all fixed to a Z-axis table in opposite relation to the substrate. The paste reservoir tube and the nozzle are communicated with each other by a horizontal portion of the nozzle support. The horizontal portion is extended to a position below the optical displacement meter so that the nozzle is located close to a measuring point of the optical displacement meter. This arrangement places the nozzle as close as possible to the measuring point of the optical displacement meter, whereby an error between data measured by the optical displacement meter and an actual nozzle-to-substrate gap is substantially eliminated to assure that the paste is applied to the substrate in a desired pattern and configuration.

REFERENCES:
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patent: 4244766 (1981-01-01), Yellen
patent: 4291642 (1981-09-01), Kolc
patent: 4318763 (1982-03-01), Bieler et al.
patent: 4458412 (1984-07-01), Dean et al.
patent: 4704181 (1987-11-01), Kubo
patent: 4762578 (1988-08-01), Burgin, Jr. et al.
patent: 4804435 (1989-02-01), Gelinas et al.
patent: 4919746 (1990-04-01), Celia
patent: 4972798 (1990-11-01), Ando et al.
patent: 5076485 (1991-12-01), MacKay

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