Missing wire detector

Details Missing wire detector Missing wire detector

1998-06-16

2000-03-21

Ryan, Patrick

Metal fusion bonding

With means to juxtapose and bond plural workpieces

Wire lead bonder

228 8, 228102, 2281805, B23K 3700, B23K 1308, B23K 3100, B23K 3102

Patent

active

060392347

ABSTRACT:
A method and apparatus for monitoring the presence of a bonding wire in a wire bonding machine. The apparatus generates an AC signal which is coupled to the bonding tool. A sensor senses a current of the AC signal flowing to the bonding tool and a current of the AC signal returned from the bonding tool. The current flows are compared to one another to determine the presence or absence of the bonding wire in the bonding tool.

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