Screen printing apparatus

Details Screen printing apparatus Screen printing apparatus

2002-07-10

2009-08-25

Werner, Brian P (Department: 2624)

Image analysis

Applications

Manufacturing or product inspection

C382S144000, C382S147000, C382S152000, C382S294000, C348S125000

Reexamination Certificate

active

07580558

ABSTRACT:
A screen printing apparatus and method for printing deposits of material onto a workpiece, the apparatus comprising an inspection station for determining a positional relationship of features on upper and lower surfaces of the workpiece. The inspection station comprises an imaging system for determining a positional relationship of features on upper and lower surfaces of the workpiece. The imaging system comprises at least two spaced imaging units for imaging features on an upper surface of the workpiece and at least two spaced imaging units for imaging features on a lower surface of the workpiece. A processing unit determines a positional relationship of the imaged features on the upper and lower surfaces of the workpiece. A printing station prints deposits of material onto the workpiece. Also described are a transport mechanism and an alignment system.

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