| 摘要 |
PROBLEM TO BE SOLVED: To provide a screen printing machine equipped with a cleaning mechanism, which can efficiently remove a solder paste remained in the opening parts of a screen. SOLUTION: The screen printing machine is equipped with the screen S having the opening parts Sa corresponding to a circuit pattern to be printed on a substrate P and an injection nozzle 71, which can be relatively translated to the under surface of the screen S after printing and injects a gas for blowing away and removing the solder paste remaining behind in the opening parts Sa after printing. In addition, in the machine, an image picking-up means 4 for picking-up a substrate P after printing and a controlling means 11, which recognizes the defective portions and modes of the circuit pattern from the image of the substrate P picked-up with the image picking-up means 4, specifies the remaining portions of the solder paste in the corresponding opening parts Sa on the basis of the defective portions and modes and controls to drive the injection nozzle 71 so as to position the nozzle 71 to the remaining portions, are provided. COPYRIGHT: (C)2004,JPO
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