Conductive ball mounting apparatus

Details Conductive ball mounting apparatus Conductive ball mounting apparatus

1997-07-03

1999-11-16

Young, Lee

Metal working

Method of mechanical manufacture

Electrical device making

29832, 29840, 29843, 29854, 29DIG44, 29743, H05K 330

Patent

active

059834900

ABSTRACT:
A suction head has a plurality of suction units. The respective suction units have spaces each connected with a vacuum pump through a first valve. A sensor observes works on a substrate to inspect whether or not a bad mark is marked on the works. The spaces are separated from one another so that only the spaces corresponding to works of good quality with no bad mark are vacuum-evacuated so as to vacuum-suck conductive balls, while preventing the space corresponding to defective work or works with the bad mark from being vacuum-evacuated by closing a first valve so as to cancel the mounting of the conductive balls.

REFERENCES:
patent: 4851902 (1989-07-01), Tezuka et al.
patent: 5323528 (1994-06-01), Baker
patent: 5467913 (1995-11-01), Namekawa et al.
patent: 5657528 (1997-08-01), Sakemi et al.
patent: 5695667 (1997-12-01), Eguchi et al.

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