Method and apparatus for the production and quality testing...

Details Method and apparatus for the production and quality testing... Method and apparatus for the production and quality testing...

2005-07-05

2005-07-05

Williams, Hezron (Department: 2856)

Measuring and testing

Vibration

By mechanical waves

C073S589000, C073S827000

Reexamination Certificate

active

06912906

ABSTRACT:
Method of producing a bonded wire connection between an electronic component or a subassembly and a carrier by introducing energy from an ultrasound transducer into a wire that is to be bonded. According to this method, during the introduction of energy the impedance of the ultrasound transducer is measured as a function of time. The shape of the curve representing this time dependence is evaluated on the basis of a pre-specified comparison criteria, and the power input to the ultrasound transducer and/or a bond weight exerted on the wire is/are controlled in dependence on the result of this evaluation. A device usable for carrying out this method is also described.

REFERENCES:
patent: 4341574 (1982-07-01), Landes
patent: 4445378 (1984-05-01), Zuckerwar
patent: 4619397 (1986-10-01), Urban
patent: 4984730 (1991-01-01), Gobel et al.
patent: 5213249 (1993-05-01), Long et al.
patent: 5314105 (1994-05-01), Farassat
patent: 5889210 (1999-03-01), Inoue
patent: 5894981 (1999-04-01), Kelly
patent: 6308881 (2001-10-01), Hesse et al.
patent: 6512444 (2003-01-01), Morris et al.
patent: 6568581 (2003-05-01), Boller et al.
patent: 44 47 073 (1996-07-01), None
patent: 2 271 305 (1994-04-01), None

Affiliated with

Also associated with

Rating

Method and apparatus for the production and quality testing... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for the production and quality testing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for the production and quality testing... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3395098