Electrical flame-off wand

Details Electrical flame-off wand Electrical flame-off wand

1995-07-14

1997-05-13

Shaw, Clifford C.

Electric heating

Metal heating

Wire, rod, or bar bonding

B23K 900

Patent

active

056289227

ABSTRACT:
A electrical flame-off (EFO) wand 200 for emitting an electrical discharge to form a length of bonding wire into a ball comprising a stainless steel tube mounting section 305 for mounting, a platinum rod electrode 315 inserted partially into the tube 305 and secured with electrically conductive epoxy 310. The dimensions of EFO wand 200 allows the capillary 110 to be positioned close to the die-lead frame assembly, improving the productivity of the bonding process and providing economical, good quality and more reliable wire bonding.

REFERENCES:
patent: 3826000 (1974-07-01), Rocher et al.
patent: 3950631 (1976-04-01), Schmidt et al.
patent: 4594493 (1986-06-01), Harrah et al.
patent: 4999472 (1991-03-01), Neinast et al.
patent: 5110032 (1992-05-01), Akiyama et al.
patent: 5170928 (1992-12-01), Farassat

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