US3628716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic welding device with a suction rod for treating microsemiconductor blocks
Assignee: US Philips Corp
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Filing: 1969-02-17
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Granted: 1971-12-21
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Expires: 1989-02-17
Abstract
Abstract An ultrasonic welding device that includes a welding rod with an axial channel extending to the welding tip. A hollow needle is slidably supported within the channel so that one end extends beyond the end of the welding tip. When a force is exerted on the exposed end of the needle it is retracted into the channel. The other end of the needle is coupled to a suction pump or the like. The welding rod is movable relative to a work support and an ultrasonic generator vibrates the welding rod.
Inventors
- 👤 Joseph Jules Jacques Fastre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:26
CPC Classifications
H; H10; H10P; H10P72/00; H10P72/04; H10P72/0446; B; B23; B23K; B23K20/00; B23K20/10; B23K20/106
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
165 words
An ultrasonic welding device for ultrasonically welding contact conductors which project from a microsemiconductor block to the conductors on a substrate comprising, an ultrasonic generator, a welding rod which is movable relative to a workboard and which is incorporated in a holder connected to said ultrasonic generator, a hollow needle member, said welding rod having an aperture that extends to the welding tip and in which said hollow needle is movably supported, means for moving one end of the hollow needle out of the aperture of the welding rod beyond the welding tip over an adjustable distance, said end of the needle being slidable back into the welding rod under the influence of a force acting opposite to said moving means, means for coupling the other end of the hollow needle with an eNclosed space in which a subatmospheric pressure can be developed so that the end of the needle projecting from the welding rod constitutes a suction rod which can hold a microsemiconductor block.
Claim 2
Dependent Claim
165 words
An ultrasonic welding device for ultrasonically welding contact conductors which project from a microsemiconductor block to the conductors on a substrate comprising, an ultrasonic generator, a welding rod which is movable relative to a workboard and which is incorporated in a holder connected to said ultrasonic generator, a hollow needle member, said welding rod having an aperture that extends to the welding tip and in which said hollow needle is movably supported, means for moving one end of the hollow needle out of the aperture of the welding rod beyond the welding tip over an adjustable distance, said end of the needle being slidable back into the welding rod under the influence of a force acting opposite to said moving means, means for coupling the other end of the hollow needle with an eNclosed space in which a subatmospheric pressure can be developed so that the end of the needle projecting from the welding rod constitutes a suction rod which can hold a microsemiconductor block.
Claim 3
Dependent Claim
74 words
A device as claimed in claim 1 wherein the welding rod is arranged above the workboard, said device further comprising a first operating member for adjusting the distance between the welding rod and said workboard in the direction in which the needle slides into the rod, and one or more operating members for adjusting the relative position of the welding rod and the workboard in a plane at right angles to the said direction.
Claim 4
Dependent Claim
61 words
A device as claimed in claim 1 wherein the workboard further comprises a measuring substrate having conductors which are adapted to be connected to a measuring apparatus for testing the microsemiconductor block to be treated, said conductors being located on the upper side of the substrate in a configuration which corresponds to the positioning of the conductors on the microsemiconductor block.
Claim 5
Dependent Claim
46 words
A device as claimed in claim 2, characterized in that the workboard further comprises a supply board having a slot in which a semiconductor strip can be moved so as to overhang the edge of said supply board at a point aligned with the welding tip.
Claim 6
Dependent Claim
41 words
A device as claimed in claim 1 wherein said welding tip is at least partly composed of electric-insulating material and said ultrasonic generator is arranged to vibrate the welding tip at right angles to the longitudinal axis of the welding rod.
Claim 7
Dependent Claim
95 words
An ultrasonic welding device comprising a work support, an elongate-welding rod having a longitudinal channel extending to the welding tip, said support and rod being relatively movable, a hollow needle member coaxially and movably supported within said channel so that one end of the needle extends beyond the end of the welding tip, said needle being retractable into the welding rod channel when a force is exerted on the exposed end, means for coupling the other end of the needle to a source of suction, and means for imparting ultrasonic vibrations to the welding rod.
Claim 8
Dependent Claim
95 words
An ultrasonic welding device comprising a work support, an elongate-welding rod having a longitudinal channel extending to the welding tip, said support and rod being relatively movable, a hollow needle member coaxially and movably supported within said channel so that one end of the needle extends beyond the end of the welding tip, said needle being retractable into the welding rod channel when a force is exerted on the exposed end, means for coupling the other end of the needle to a source of suction, and means for imparting ultrasonic vibrations to the welding rod.
Claim 9
Dependent Claim
28 words
A device as claimed in claim 6 further comprising means for moving said support in discrete steps in a plane perpendicular to the axis of the welding rod.
Claim 10
Dependent Claim
35 words
A device as claimed in claim 6 further comprising a single operating member for adjusting the movement between the welding rod and the support in the direction of the longitudinal axis of the welding rod.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |