Apparatus for applying paste

Details Apparatus for applying paste Apparatus for applying paste

1994-07-27

1997-03-25

Czaja, Donald E.

Coating apparatus

With indicating, testing, inspecting, or measuring means

118697, 118706, B05C 1100

Patent

active

056140240

ABSTRACT:
An apparatus for applying a paste to a surface of a substrate by holding the substrate on a table and by moving a nozzle relative to the table to form a desired paste pattern on the substrate. The apparatus has a device for measuring the position of a paste ejection orifice of the nozzle, a processing unit for calculating, from a result of the measurement by the measuring device, a displacement of the position of the paste ejection orifice when the nozzle is changed, and a mechanism for positioning the substrate at a desired position with respect to the ejection orifice of the changed nozzle on the basis of a result of the operation of the processsing unit. With this arrangement, even if the position of the ejection orifice of the nozzle is changed when the nozzle is changed, the desired positional relationship between the nozzle and the substrate can be set with improved accuracy, whereby a paste pattern can be drawn accurately.

REFERENCES:
patent: 4919967 (1990-04-01), Handke et al.
patent: 5052338 (1991-10-01), Maiorca et al.
patent: 5387288 (1995-02-01), Shatas
patent: 5437727 (1995-08-01), Yoneda et al.

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