Driver for an ultrasonic transducer and an ultrasonic...

Details Driver for an ultrasonic transducer and an ultrasonic... Driver for an ultrasonic transducer and an ultrasonic...

2004-01-05

2008-12-09

Budd, Mark (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Reciprocating

Reexamination Certificate

active

07462960

ABSTRACT:
An ultrasonic transducer driver has a giant magnetostrictive element, a fastener for holding the giant magnetostrictive element under mechanical pressure, a first field generator for providing a magnetic bias field, a second field generator for providing a magnetic drive field and a magnetic circuit for channelling the magnetic fields in the magnetostrictive element. An ultrasonic transducer for a bonding apparatus has a horn having a bonding tool at its smaller end and a mounting barrel adjoined onto it. The driver coupled to the larger end of the horn.

REFERENCES:
patent: 3852999 (1974-12-01), Wright
patent: 4845450 (1989-07-01), Porzio et al.
patent: 5047683 (1991-09-01), Butler et al.
patent: 5488955 (1996-02-01), Dias et al.
patent: 5510660 (1996-04-01), Flatau et al.
patent: 5880542 (1999-03-01), Leary et al.
patent: 5980251 (1999-11-01), Sullivan et al.
patent: 6545060 (2003-04-01), Ruhman et al.
patent: 6624539 (2003-09-01), Hansen et al.

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