Patent US4373653A successfully refreshed from Google Patents.
US4373653A
Expired / Lapsed
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Method and apparatus for ultrasonic bonding
Assignee: Raytheon Co
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Filing: 1981-09-10
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Granted: 1983-02-15
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Expires: 2001-09-10
Abstract
Abstract A method and apparatus for providing high reliability ultrasonic bonds by monitoring the force required to separate the bonding tool from the wire after the bonding operation. This force which is required to break an incidental bond between the tool and the wire is related to the quality of the primary bond of the wire to a conductor terminal. The output of a transducer is proportional to the force and it may be coupled to a visual display, alarm, or computer for trend analysis.
Inventors
- 👤 Thomas E. Salzer
- 👤 Michael S. Masheff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:03
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/10; H; H10; H10W; H10W72/00; H10W72/071; H10W72/0711; H10W72/075; H10W72/07531; H10W72/07532; H10W72/07533; H10W72/50; H10W72/531; H10W72/533; H10W72/534; H10W72/551; H10W72/552; H10W72/5524; H10W90/00; H10W90/701; H10W90/751; H10W90/754
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
68 words
A method for providing high reliability ultrasonic bonds comprising the steps of: bonding a wire to a conductive terminal using an ultrasonic bonding tool; generating a signal corresponding to the force required to separate said tool from said wire; and providing a display in response to said signal for supplying the operator with data relating to the quality of the bond of said wire to said conductive terminal.
Claim 2
Independent Claim
68 words
A method for providing high reliability ultrasonic bonds comprising the steps of: bonding a wire to a conductive terminal using an ultrasonic bonding tool; generating a signal corresponding to the force required to separate said tool from said wire; and providing a display in response to said signal for supplying the operator with data relating to the quality of the bond of said wire to said conductive terminal.
Claim 3
Dependent Claim
22 words
The method recited in claim 1 wherein said signal is generated by a transducer connected to the substrate of said conductive terminal.
Claim 4
Dependent Claim
13 words
The method recited in claim 1 wherein said display comprises a digital voltmeter.
Claim 5
Independent Claim
54 words
A method for detecting poor quality ultrasonic bonds comprising the steps of: bonding a wire to a conductive terminal using an ultrasonic bonding tool; generating a signal corresponding to the force required to separate said tool from said wire; and providing an operator alarm in response to said signal being outside a predetermined range.
Claim 6
Independent Claim
54 words
A method for detecting poor quality ultrasonic bonds comprising the steps of: bonding a wire to a conductive terminal using an ultrasonic bonding tool; generating a signal corresponding to the force required to separate said tool from said wire; and providing an operator alarm in response to said signal being outside a predetermined range.
Claim 7
Dependent Claim
22 words
The method recited in claim 4 wherein said signal is generated by a transducer connected to the substrate of said conductive terminal.
Claim 8
Dependent Claim
13 words
The method recited in claim 4 wherein said alarm comprises an audio alarm.
Claim 9
Independent Claim
64 words
A method for providing high reliability ultrasonic bonds comprising the steps of: bonding wires to respective conductive terminals using an ultrasonic bonding tool; generating signals corresponding to the respective forces required to separate said tool from said wires after each individual bond is made; and coupling said signals to a digital computing apparatus for performing statistical operations relating to a plurality of said signals.
Claim 10
Independent Claim
64 words
A method for providing high reliability ultrasonic bonds comprising the steps of: bonding wires to respective conductive terminals using an ultrasonic bonding tool; generating signals corresponding to the respective forces required to separate said tool from said wires after each individual bond is made; and coupling said signals to a digital computing apparatus for performing statistical operations relating to a plurality of said signals.
Claim 11
Independent Claim
66 words
A method for providing high reliability ultrasonic bonds comprising the steps of: bonding wires to respective conductive terminals using an ultrasonic tool; generating signals corresponding to the respective forces required to separate said tool from said wires after each individual bond is made; and monitoring a plurality of said signals for determining trends relating to the quality of bonds of said wires to said conductive terminals.
Claim 12
Independent Claim
66 words
A method for providing high reliability ultrasonic bonds comprising the steps of: bonding wires to respective conductive terminals using an ultrasonic tool; generating signals corresponding to the respective forces required to separate said tool from said wires after each individual bond is made; and monitoring a plurality of said signals for determining trends relating to the quality of bonds of said wires to said conductive terminals.
Claim 13
Independent Claim
71 words
A system for providing high reliability ultrasonic bonds comprising: means for bonding a wire to a conductive terminal using an ultrasonic bonding tool; means for generating a signal corresponding to the force required to separate said tool from said wire; and means for providing a display in response to said signal for supplying the operator with data relating to the quality of the bond of said wire to said conductive terminal.
Claim 14
Independent Claim
71 words
A system for providing high reliability ultrasonic bonds comprising: means for bonding a wire to a conductive terminal using an ultrasonic bonding tool; means for generating a signal corresponding to the force required to separate said tool from said wire; and means for providing a display in response to said signal for supplying the operator with data relating to the quality of the bond of said wire to said conductive terminal.
Claim 15
Dependent Claim
21 words
The system recited in claim 9 wherein said generating means comprises a transducer coupled to the substrate of said conductive terminal.
Claim 16
Dependent Claim
14 words
The system recited in claim 9 wherein said providing means comprises a digital voltmeter.
Claim 17
Dependent Claim
14 words
The system recited in claim 9 wherein said providing means comprises a digital computer.
Claim 18
Independent Claim
66 words
A system for providing high reliability ultrasonic bonds comprising: means for bonding a wire to a conductive terminal using an ultrasonic bonding tool; means for generating a signal corresponding to the force required to separate said tool from said wire; and means for monitoring a plurality of successive said signals for determining trends relating to the quality of bonds of said wires to said conductive terminals.
Claim 19
Independent Claim
66 words
A system for providing high reliability ultrasonic bonds comprising: means for bonding a wire to a conductive terminal using an ultrasonic bonding tool; means for generating a signal corresponding to the force required to separate said tool from said wire; and means for monitoring a plurality of successive said signals for determining trends relating to the quality of bonds of said wires to said conductive terminals.
Claim 20
Dependent Claim
21 words
The system recited in claim 13 wherein said generating means comprises a transducer coupled to the substrate of said conductive terminal.
Claim 21
Dependent Claim
15 words
The system recited in claim 14 wherein said generating means further comprises a charge amplifier.
Claim 22
Dependent Claim
14 words
The system recited in claim 13 wherein said monitoring means comprises a digital computer.
Claim 23
Dependent Claim
59 words
In combination: an ultrasonic apparatus having a bonding tool; means for supporting a work piece adjacent to said tool for ultrasonically bonding a wire to said work piece with said tool; means for generating a signal corresponding to the force required to separate said tool from said wire after an ultrasonic bonding operation; and means for displaying said signal.
Claim 24
Dependent Claim
59 words
In combination: an ultrasonic apparatus having a bonding tool; means for supporting a work piece adjacent to said tool for ultrasonically bonding a wire to said work piece with said tool; means for generating a signal corresponding to the force required to separate said tool from said wire after an ultrasonic bonding operation; and means for displaying said signal.
Claim 25
Dependent Claim
19 words
The combination in accordance with claim 17 wherein said generating means comprises a transducer coupled to said supporting means.
Claim 26
Dependent Claim
15 words
The combination in accordance with claim 17 wherein said displaying means comprises a digital voltmeter.
Claim 27
Dependent Claim
26 words
The combination in accordance with claim 17 further comprising a digital computer for storing a plurality of successive said signals and computing a trend relative thereto.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-02-14 | 1986-08-16 | 1987-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-14 | 1990-08-16 | 1991-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-14 | 1994-08-16 | 1995-02-15 | $7700.00 | Window Closed / Lapsed |