US3774834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bonding apparatus
Assignee: J&A Keller Machine Co Inc
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Filing: 1971-07-20
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Granted: 1973-11-27
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Expires: 1991-07-20
Abstract
Abstract A bonding apparatus and method for simultaneously bonding the leads of a beam-leaded device uniformly to conductive pads on a substrate. A continuous strip of metal consisting of a plurality of heat and pressure transmitting members is intermittently fed to a rotatable bonding head having a plurality of bonding tools. Each transmitting member is adapted to be interposed between the bonding tool and the leads of the beam-leaded device to evenly distribute and transmit bonding forces to such leads to effect uniform and simultaneous bonding thereof to their connections. A crimping device coacts with the bonding tools to partially deform a transmitting member about its respective tool prior to bonding.
Inventors
- 👤 J Holler
- 👤 E Waeldchen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:48
CPC Classifications
H; H10; H10P; H10P72/00; H10P72/04; H10P72/0446; B; B23; B23K; B23K20/00; B23K20/02; B23K2101/00; B23K2101/36; B23K2101/40; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49121
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
254 words
A bonding apparatus for simultaneously bonding the leads of a first workpiece to desired areas on a second workpiece comprising: a frame having a base, a reciprocable carriage mounted on said frame, a bonding head carried by said carriage and having at least one bonding tool thereon, drive means for reciprocating said carriage toward and away from said base and for applying pressure to said bonding tool, means for heating said bonding tool, means carried by said bonding tool and engagable with the leads of a first workpiece for transmitting pressure and heat from said bonding tool to said leads for uniformly bonding each of said leads to desired areas on a second workpiece, and means for roll crimping portions of said transmitting means about the periphery of said bonding tool to provide formations extending inwardly from the tip of said tool, said transmitting means comprising an elongated strip of material having a plurality of longitudinally spaced deformable frame members adapted to be successively carried by said bonding tools, means for roll crimping portions of said deformable frame members about the periphery of said bonding tools to provide depressed formations in said strip between adjacent bonding tools, said crimping means comprising a rotatable head located in close proximity to said bonding head and having a plurality of circumferentially spaced crimping elements thereon, and means connecting said bonding head and said crimping head for synchronous rotation whereby successive crimping elements are adapted to register with successive bonding tools to crimp said deformable members fed therebetween.
Claim 2
Dependent Claim
254 words
A bonding apparatus for simultaneously bonding the leads of a first workpiece to desired areas on a second workpiece comprising: a frame having a base, a reciprocable carriage mounted on said frame, a bonding head carried by said carriage and having at least one bonding tool thereon, drive means for reciprocating said carriage toward and away from said base and for applying pressure to said bonding tool, means for heating said bonding tool, means carried by said bonding tool and engagable with the leads of a first workpiece for transmitting pressure and heat from said bonding tool to said leads for uniformly bonding each of said leads to desired areas on a second workpiece, and means for roll crimping portions of said transmitting means about the periphery of said bonding tool to provide formations extending inwardly from the tip of said tool, said transmitting means comprising an elongated strip of material having a plurality of longitudinally spaced deformable frame members adapted to be successively carried by said bonding tools, means for roll crimping portions of said deformable frame members about the periphery of said bonding tools to provide depressed formations in said strip between adjacent bonding tools, said crimping means comprising a rotatable head located in close proximity to said bonding head and having a plurality of circumferentially spaced crimping elements thereon, and means connecting said bonding head and said crimping head for synchronous rotation whereby successive crimping elements are adapted to register with successive bonding tools to crimp said deformable members fed therebetween.
Claim 3
Dependent Claim
23 words
A bonding apparatus as set forth in claim 1 including means for adjusting said crimping head toward and away from said bonding head.
Claim 4
Dependent Claim
174 words
A bonding apparatus for simultaneously bonding the leads of a first workpiece to desired areas on a second workpiece comprising: a frame having a base, a reciprocable carriage mounted on said frame, a bonding head carried by said carriage and having at least one bonding tool thereon, drive means for reciprocating said carriage toward and away from said base And for applying pressure to said bonding tool, means for heating said bonding tool, means carried by said bonding tool and engagable with the leads of a first workpiece for transmitting pressure and heat from said bonding tool to said leads for uniformly bonding each of said leads to desired areas on a second workpiece, and means for roll crimping portions of said transmitting means about the periphery of said bonding tool to provide formations extending inwardly from the tip of said tool, a second drive means for reciprocating said carriage toward and away from said base independently of said first drive means, and control means for selectively operating said first and second drive means.
Claim 5
Dependent Claim
174 words
A bonding apparatus for simultaneously bonding the leads of a first workpiece to desired areas on a second workpiece comprising: a frame having a base, a reciprocable carriage mounted on said frame, a bonding head carried by said carriage and having at least one bonding tool thereon, drive means for reciprocating said carriage toward and away from said base And for applying pressure to said bonding tool, means for heating said bonding tool, means carried by said bonding tool and engagable with the leads of a first workpiece for transmitting pressure and heat from said bonding tool to said leads for uniformly bonding each of said leads to desired areas on a second workpiece, and means for roll crimping portions of said transmitting means about the periphery of said bonding tool to provide formations extending inwardly from the tip of said tool, a second drive means for reciprocating said carriage toward and away from said base independently of said first drive means, and control means for selectively operating said first and second drive means.
Claim 6
Dependent Claim
57 words
A bonding apparatus as set forth in claim 3 wherein said workholder includes a table having a workpiece support surface, passage means extending through said table and having on end terminating at said support surface, the other end of said passage means connected to a source of vacuum for securing said second workpiece to said support surface.
Claim 7
Dependent Claim
15 words
A bonding apparatus as set forth in claim 4 including means for heating said table.
Claim 8
Dependent Claim
262 words
A bonding apparatus for simultaneously bonding the leads of a first workpiece to desired areas on a second workpiece comprising: a frame having a base, a reciprocable carriage mounted on said frame, a bonding head carried by said carriage and having at least one bonding tool thereon, drive means for reciprocating said carriage toward and away from said base and for applying pressure to said bonding tool, means for heating said bonding tool, means carried by said bonding tool and engagable with the leads of a first workpiece for transmitting pressure and heat from said bonding tool to said leads for uniformly bonding each of said leads to desired ares on a second workpiece, and means for roll crimping portions of said transmitting means about the periphery of said bonding tool to provide formations extending inwardly from the tip of said tool, a slide mounted for reciprocable movement on said base, a work table carried by said slide for supporting a plurality of said first workpieces on a workholder mounted on said slide for supporting said second workpiece, a second drive means for reciprocating said carriage toward and away from said base independently of said first drive means, and control means for selectively operating said second drive means when said work table is in registry with said bonding tool to attach one of said first workpieces to said bonding tool and operating said first drive means when said workholder is in registry with said bonding tool to bond the leads of said first workpiece to said desired areas on said second workpiece.
Claim 9
Dependent Claim
262 words
A bonding apparatus for simultaneously bonding the leads of a first workpiece to desired areas on a second workpiece comprising: a frame having a base, a reciprocable carriage mounted on said frame, a bonding head carried by said carriage and having at least one bonding tool thereon, drive means for reciprocating said carriage toward and away from said base and for applying pressure to said bonding tool, means for heating said bonding tool, means carried by said bonding tool and engagable with the leads of a first workpiece for transmitting pressure and heat from said bonding tool to said leads for uniformly bonding each of said leads to desired ares on a second workpiece, and means for roll crimping portions of said transmitting means about the periphery of said bonding tool to provide formations extending inwardly from the tip of said tool, a slide mounted for reciprocable movement on said base, a work table carried by said slide for supporting a plurality of said first workpieces on a workholder mounted on said slide for supporting said second workpiece, a second drive means for reciprocating said carriage toward and away from said base independently of said first drive means, and control means for selectively operating said second drive means when said work table is in registry with said bonding tool to attach one of said first workpieces to said bonding tool and operating said first drive means when said workholder is in registry with said bonding tool to bond the leads of said first workpiece to said desired areas on said second workpiece.
Claim 10
Dependent Claim
197 words
A bonding apparatus for simultaneously bonding the leads of a first workpiece to desired areas on a second workpiece comprising: a frame having a base, a reciprocable carriage mounted on said frame, a bonding head carried by said carriage and having at least one bonding tool thereon, drive means for reciprocating said carriage toward and away from said base and for applying pressure to said bonding tool, means for heating said bonding tool, means carried by said bonding tool and engagable with the leads of a first workpiece for transmitting pressure and heat from said bonding tool to said leads for uniformly bonding each of said leads to desired areas on a second workpiece, and means for roll crimping portions of said transmitting means about the periphery of said bonding tool to provide formations extending inwardly from the tip of said tool, means for aligning said leads of said first workpiece with said desired areas on said second workpiece with said first and second workpieces being spaced apart, said alignment means including optical means for viewing said first and said second workpieces in said spaced apart relation to form superimposed images of said first and second workpieces.
Claim 11
Dependent Claim
197 words
A bonding apparatus for simultaneously bonding the leads of a first workpiece to desired areas on a second workpiece comprising: a frame having a base, a reciprocable carriage mounted on said frame, a bonding head carried by said carriage and having at least one bonding tool thereon, drive means for reciprocating said carriage toward and away from said base and for applying pressure to said bonding tool, means for heating said bonding tool, means carried by said bonding tool and engagable with the leads of a first workpiece for transmitting pressure and heat from said bonding tool to said leads for uniformly bonding each of said leads to desired areas on a second workpiece, and means for roll crimping portions of said transmitting means about the periphery of said bonding tool to provide formations extending inwardly from the tip of said tool, means for aligning said leads of said first workpiece with said desired areas on said second workpiece with said first and second workpieces being spaced apart, said alignment means including optical means for viewing said first and said second workpieces in said spaced apart relation to form superimposed images of said first and second workpieces.
Claim 12
Dependent Claim
48 words
A bonding apparatus as set forth in claim 7 including means for moving said first and second workpieces relative to each other in planes normal to the direction of travel of said carriage to align the images of said leads with said desired areas on said second workpieces.
Claim 13
Dependent Claim
88 words
A bonding apparatus as set forth in claim 7 wherein said optical means includes a microscope assembly having an objective lens, a beam splitter assembly for reflecting light rays 90* from said spaced apart first and second workpieces, and a mirror disposed in the path of said reflected light rays and interposed between said beam splitter assembly and said objective lens to further reflect said reflected light rays into the line of sight of said objective lens to form true superimposed images of said first and second workpieces.
Claim 14
Dependent Claim
40 words
A bonding apparatus as set forth in claim 8 including a holder upon which said second workpiece is carried, and hand operable linkage means operatively connected to said holder for moving the latter in directions generally normal to each other.
Claim 15
Dependent Claim
109 words
A bonding apparatus as set forth in claim 10 including a carriage upon which said workholder is mounted and wherein said linkage means includes a control lever operatively connected to a movable parallelogram linkage pivotally connected to a fixed pivot axis, said parallelogram linkage being provided with an extension projecting outwardly of the area circumscribed by said parallelogram linkage, said extension having means connecting said workholder carriage thereto whereby movement of said lever in one horizontal direction effects movement of said workholder in the same direction and movement of said lever in a direction normal to said one horizontal direction effects movement of said workholder in a reverse direction.
Claim 16
Dependent Claim
146 words
A bonding apparatus comprising: a frame having a base, a reciprocable carriage mounted on said frame for movement toward and away from said base, a rotatable shaft, a bonding head mounted on one end of said shaft and having a plurality of bonding tools thereon, means for indexing said bonding head to bring successive bonding tools into a bonding position, said indexing means comprising a pin wheel assembly mounted on the other end of said shaft, a plurality of circumferentially spaced studs on said assembly, a lever pivotally mounted on said frame and provided with a stud engaging detent, means biasing said lever toward said pin wheel assembly whereby said detent is in the path of movement of one of said studs upon moving said carriage away from said base and relative to said lever to effect rotation of said shaft through a predetermined arcuate extent.
Claim 17
Dependent Claim
146 words
A bonding apparatus comprising: a frame having a base, a reciprocable carriage mounted on said frame for movement toward and away from said base, a rotatable shaft, a bonding head mounted on one end of said shaft and having a plurality of bonding tools thereon, means for indexing said bonding head to bring successive bonding tools into a bonding position, said indexing means comprising a pin wheel assembly mounted on the other end of said shaft, a plurality of circumferentially spaced studs on said assembly, a lever pivotally mounted on said frame and provided with a stud engaging detent, means biasing said lever toward said pin wheel assembly whereby said detent is in the path of movement of one of said studs upon moving said carriage away from said base and relative to said lever to effect rotation of said shaft through a predetermined arcuate extent.
Claim 18
Dependent Claim
57 words
A bonding apparatus as set forth in claim 12 wherein said lever is provided with a second detent engagable by a stud adjacent said one stud for shifting said lever against the force of said biasing means to disengage said one stud from said first mentioned detent upon further movement of said carriage away from said base.
Claim 19
Dependent Claim
26 words
A bonding apparatus as set forth in claim 13 including means for locking said bonding head in an indexed position before and after the indexing operation.
Claim 20
Dependent Claim
52 words
A bonding apparatus as set forth in claim 14 wherein said locking means comprises a pivotal lever carried by said carriage and having a notch in one longitudinal edge thereof, means biasing said lever toward said pin wheel assembly to engage said notch about a stud remotely spaced from said one stud.
Claim 21
Dependent Claim
48 words
A bonding apparatus as set forth in claim 15 including a cam on the distal end of said first mentioned lever engagable with said locking lever to disengage said notch from said remotely spaced stud prior to the engagement of said one stud with said first mentioned detent.
References Cited (Backward Citations)
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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) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |