Metal working – Method of mechanical manufacture – Electrical device making
Patent
1997-09-26
2000-12-05
Young, Lee
Metal working
Method of mechanical manufacture
Electrical device making
29709, 29710, 29740, 29743, 29834, 36446815, 36446828, H05K 330, B23P 1900
Patent
active
061549576
ABSTRACT:
An electronic parts mounting method in which chips in a plurality of parts feeders are picked up respectively by at least three nozzles, and a lowered mounting efficiency is avoided when any of the nozzles becomes bad, thereby mounting the chips on a board with a good operation efficiency. In a normal condition, the chips in the parts feeders are simultaneously picked up respectively by the first, second and third nozzles, and are transferred to and mounted on the board. When any of the three nozzles becomes bad, the mounting of the chips by this bad nozzle is stopped while the mounting of the chips by the other normal nozzles is effected as scheduled in a program, and thereafter those chips scheduled to be mounted by the bad nozzle are mounted by the normal nozzles. Therefore, the number of the pick-up operations is reduced as much as possible, so that the mounting efficiency can be enhanced.
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Abe Nobutaka
Nakamura Yuji
Tsubouchi Yuzo
Matsushita Electric - Industrial Co., Ltd.
Tugbang A. Dexter
Young Lee
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