US3698620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for connecting lead portions of a lead frame to respective pads on a chip
Assignee: Motorola Solutions Inc
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Filing: 1970-03-25
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Granted: 1972-10-17
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Expires: 1990-03-25
Abstract
Abstract Wire bonding is eliminated in the assembly of a micro-electronic chip having bonding pads by a process involving the direct bonding of the bonding pads to the ends of respective inwardly extending leads comprising portions of a frame member. A machine is provided for properly positioning a chip with respect to a frame member and for simultaneously bonding of all leads to the ends of all the bonding pads of a semiconductor integrated circuit chip in one step. Many frame members are provided in a strip which may be supplied rolled up on a reel. After the pads on the chip are bonded to the ends of the leads of the frame member, the strip may be rolled on another reel and transported to another machine for performing another step or other steps thereon.
Inventors
- 👤 Harry J Geyer
- 👤 Robert W Helda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:26
CPC Classifications
H; H10; H10P; H10P72/00; H10P72/04; H10P72/0446; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/5313; Y10T29/532; Y10T29/53209; Y10T29/53261
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
319 words
Apparatus for bonding in a single bonding operation a plurality of conductive lead portions to a plurality of contact portions on an electrical unit, said conductive lead portions being arranged in a group around a central area and separated from one another to serve ultimately as conductors from said electrical unit, with said group being one of a plurality of such groups spaced apart from one another oVer the length of a member, said apparatus including means for intermittently moving said member through the apparatus to place a group of conductive lead portions one group at a time in a fixed position for a bonding operation of said group of lead portions and corresponding contact portions of an electrical unit, anvil means at said fixed position in the apparatus, supporting means in the apparatus for an electrical unit while it is being aligned to a bonding position, connecting means for said supporting means, an optical system for viewing the electrical unit while it is being aligned, means selectively moving said connecting means to in turn move said supporting means to place said electrical unit in an aligned position, while being viewed in said optical system, bonding means having suction means therewith maintaining an aligned electrical unit at the bonding end of said bonding means, means providing relative vertical movement of at least one of the bonding means and anvil means to bring the contact portions of an electrical unit and the corresponding conductive lead portions of a group into pressured engagement for a bonding operation, means energizing the bonding means to perform a bonding operation of the contact portions of the electrical unit and a group of conductive lead portions, means permitting the bonding means and anvil means to separate after a bonding operation, and means energizing the means for intermittently moving said member to place another group of conductive lead portions in position for a corresponding bonding operation.
Claim 2
Dependent Claim
319 words
Apparatus for bonding in a single bonding operation a plurality of conductive lead portions to a plurality of contact portions on an electrical unit, said conductive lead portions being arranged in a group around a central area and separated from one another to serve ultimately as conductors from said electrical unit, with said group being one of a plurality of such groups spaced apart from one another oVer the length of a member, said apparatus including means for intermittently moving said member through the apparatus to place a group of conductive lead portions one group at a time in a fixed position for a bonding operation of said group of lead portions and corresponding contact portions of an electrical unit, anvil means at said fixed position in the apparatus, supporting means in the apparatus for an electrical unit while it is being aligned to a bonding position, connecting means for said supporting means, an optical system for viewing the electrical unit while it is being aligned, means selectively moving said connecting means to in turn move said supporting means to place said electrical unit in an aligned position, while being viewed in said optical system, bonding means having suction means therewith maintaining an aligned electrical unit at the bonding end of said bonding means, means providing relative vertical movement of at least one of the bonding means and anvil means to bring the contact portions of an electrical unit and the corresponding conductive lead portions of a group into pressured engagement for a bonding operation, means energizing the bonding means to perform a bonding operation of the contact portions of the electrical unit and a group of conductive lead portions, means permitting the bonding means and anvil means to separate after a bonding operation, and means energizing the means for intermittently moving said member to place another group of conductive lead portions in position for a corresponding bonding operation.
Claim 3
Dependent Claim
70 words
Apparatus as defined in claim 1 having a pair of reels therewith, with one reel adapted to have a member thereon for movement of such member through the apparatus from one fixed position to a successive fixed position, and with the second reel adapted to have said member reeled thereon after the conductive portions of a group with such member are bonded to the contact portions of an electrical unit.
Claim 4
Dependent Claim
48 words
Apparatus as defined in claim 1 including means for supplying a member to said apparatus for successive bonding operations of successive groups of conductive portions to respective electrical units, and means for accumulating such a member thereon for independent handling of such member after such successive bonding operations.
Claim 5
Dependent Claim
45 words
Apparatus as defined in claim 1 wherein said supporting means includes a structure for supporting a plurality of electrical units thereon for the successive alignment of each such unit relative to a final position in the apparatus for the bonding operation of each such unit.
Claim 6
Dependent Claim
49 words
Apparatus as defined in claim 1 having aligning means operatively connected to said optical system and said supporting means, and means for energizing said aligning means to move said supporting means whereby an electrical unit on said supporting means is aligned relative to a bonding position for such unit.
Claim 7
Dependent Claim
41 words
Apparatus as defined in claim 1 having a portion in the supporting means such that the placement of an electrical unit on such portion will initiate the movement of the supporting means to move an electrical unit to an aligned position.
Claim 8
Dependent Claim
39 words
Apparatus as defined in claim 1 having means associated with said optical system whereby said optical system can observe an electrical unit in a first position and in a second position in bringing said unit to a bonding position.
Claim 9
Dependent Claim
32 words
Apparatus as defined in claim 1 having X, Y and theta motion producing means for cooperation with the optical system to accomplish the alignment of an electrical unit for a bonding operation.
Claim 10
Dependent Claim
30 words
Apparatus as defined in claim 8 having means for energizing said X, Y and theta motion producing means incident to the use of the optical system for electrical unit aligning.
Claim 11
Dependent Claim
33 words
Apparatus as defined in claim 1 wherein said supporting means includes a transparent plate upon which said plurality of electrical units are supported for viewing by the optical system through said transparent plate.
Claim 12
Dependent Claim
57 words
Apparatus as defined in claim 1 adapted to accommodate a member in strip form for the bonding operations including a table portion over which said member is moved and upon which it is supported in a fixed position for the bonding operation, and reel means upon which to wind a member after electrical units are bonded thereto.
Claim 13
Dependent Claim
47 words
Apparatus as defined in claim 1 wherein said means selectively moving said connecting means is manually operable to move said supporting means, and the optical system includes a microscope for viewing of the electrical unit by the operator doing the manual operating to move the supporting means.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |