Ultrasonic horn

Details Ultrasonic horn Ultrasonic horn

2006-10-06

2011-11-08

Ward, Jessica L (Department: 1735)

Metal fusion bonding

Means to apply vibratory solid-state bonding energy to work

C228S110100, C228S111000

Reexamination Certificate

active

08052026

ABSTRACT:
An ultrasonic horn used in, for instance, a wire bonding apparatus and formed with mounting flanges, including a slit and a cross-sectional shape varying portion; the slit being on the central axis in the horn's longitudinal direction and extending fore and aft relative to the center of the mounting flanges, the length of the slit(s) being equal to or greater than the width direction of a flange region that is between the opposing flanges, and at least a part of the cross-sectional shape varying portion being on the outer surface of the horn at a slit region in which the slit is formed. The stress center point in the cross-section of the ultrasonic horn at the flange region is positioned more to the inside than a straight line joining the stress center points in the cross-sections of the ultrasonic horn at the front and rear end portions of the slit.

REFERENCES:
patent: 5364005 (1994-11-01), Whelan et al.
patent: 5595328 (1997-01-01), Safabakhsh et al.
patent: 5820011 (1998-10-01), Ito et al.
patent: 6189761 (2001-02-01), Kyomasu
patent: 7137543 (2006-11-01), DeAngelis et al.
patent: 2003/0000994 (2003-01-01), Kyomasu et al.
patent: 2001-24025 (2001-01-01), None
patent: 2001-38291 (2001-02-01), None

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