US3762015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Die bonder apparatus
Assignee: Automated Equipment Corp
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Filing: 1972-01-17
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Granted: 1973-10-02
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Expires: 1992-01-17
Abstract
Abstract A high speed, reliable die bonder is provided for picking up dice from a loading position and transporting them to a bonding position and for thermocompression bonding the dice to a transistor strip. A low-inertia, straight-line reciprocating ram mechanism operated by a modified sine-curve, motor-driven cam serves as the transport mechanism. Apparatus driven from the cam lifts and lowers the die pick-up mechanism, which is mounted on the ram mechanism. The transistor strip is indexed with the ram mechamism to synchronize the transistor strip with the die pickup and die bonding. An oscillatory die transport head synchronized with the ram mechanism serves to scrub each die at the bonding position to provide an enhanced bond.
Inventors
- 👤 W Radobenko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:26
CPC Classifications
H; H10; H10P; H10P72/00; H10P72/04; H10P72/0446; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/5313; Y10T29/53191
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
258 words
Apparatus for picking up an object at a pick-up position and transporting it to a delivery position, said apparatus comprising: pick-up means for picking up the object; a transfer arm for carrying said pick-up means at one end thereof; first drive means for moving said transfer arm and pick-up means in a straight line between the pick-up and delivery positions, said first drive means comprising first and second linkage mechanisms each pivotally coupled at one end to said transfer arm and pivotally mounted at the other end at a fixed position on said apparatus, an oscillatory drive link pivotally coupled at one end to one of said first and second linkage mechanisms, a cam follower mounted on said oscillatory drive link, a cam for controlling the movement of said cam follower to drive said oscillatory drive link and in turn said first and second linkage mechanisms and transfer arm, and means for rotating said cam; said pick-up means being mounted for vertical movement at said one end of said transfer arm and comprising a first section mounted on said transfer arm, a second section pivotally mounted on said first section for oscillatory lateral motion thereon, said second section being adapted to pick up the object; and second drive means for moving said second section in an oscillatory lateral motion at the delivery position, said second drive means comprising a drive rod coupled to said second section and to oscillatory drive means for imparting oscillatory motion to said drive rod to oscillate said second section at the delivery position.
Claim 2
Dependent Claim
258 words
Apparatus for picking up an object at a pick-up position and transporting it to a delivery position, said apparatus comprising: pick-up means for picking up the object; a transfer arm for carrying said pick-up means at one end thereof; first drive means for moving said transfer arm and pick-up means in a straight line between the pick-up and delivery positions, said first drive means comprising first and second linkage mechanisms each pivotally coupled at one end to said transfer arm and pivotally mounted at the other end at a fixed position on said apparatus, an oscillatory drive link pivotally coupled at one end to one of said first and second linkage mechanisms, a cam follower mounted on said oscillatory drive link, a cam for controlling the movement of said cam follower to drive said oscillatory drive link and in turn said first and second linkage mechanisms and transfer arm, and means for rotating said cam; said pick-up means being mounted for vertical movement at said one end of said transfer arm and comprising a first section mounted on said transfer arm, a second section pivotally mounted on said first section for oscillatory lateral motion thereon, said second section being adapted to pick up the object; and second drive means for moving said second section in an oscillatory lateral motion at the delivery position, said second drive means comprising a drive rod coupled to said second section and to oscillatory drive means for imparting oscillatory motion to said drive rod to oscillate said second section at the delivery position.
Claim 3
Dependent Claim
38 words
Apparatus as in claim 1 wherein said pick-up means includes a vacuum quill mounted on said second section for picking up the object and holding it for oscillatory lateral movement with the second section at the delivery position.
Claim 4
Dependent Claim
27 words
Apparatus as in claim 2 wherein said pick-up means further includes means for urging said second section and, hence, said vacuum quill into a normal rest position.
Claim 5
Dependent Claim
20 words
Apparatus as in claim 3 wherein said last-mentioned means comprises a compression spring mounted between said first and second sections.
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) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |