Patent US3103265A successfully refreshed from Google Patents.
US4010488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic apparatus with optional coupling
Assignee: AT&T Inc
•
Filing: 1975-11-21
•
Granted: 1977-03-01
•
Expires: 1995-11-21
Abstract
Abstract In the manufacture of certain types of electronic devices, a plurality of leads are simultaneously bonded in side-by-side relation to a corresponding number of "active" bonding sites or pads on a substrate, the "active" pads being the ends of conductive paths on the substrate. Particularly narrow active bonding pads are used to minimize the possibility of shorting together adjacent pads by leads which are not properly aligned on centers with the pads. Electrically isolated "dummy" pads, comprising relatively small metallized areas are not connected to conductive paths, are provided on the substrate between each active pad. Portions of the misaligned leads extending beyond the edges of the active pads overlap and are bonded to the dummy pads, thus minimizing the loss of bonding strength otherwise caused by the misalignment of the leads with the active pads.
Inventors
- 👤 Raymond F. Gruszka
- 👤 Clarence A. Warczyglowa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:54
CPC Classifications
H; H10; H10W; H10W70/00; H10W70/40; H10W70/421; H10W72/00; H10W72/30; H10W72/071; H10W72/073; H10W72/07331; H10W72/07336
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
86 words
Electronic apparatus comprising a circuit element and means providing preselected electrical coupling to said element, said means including first and second spaced apart coupling sites and first and second conductive members individually coupled to said first and second sites, respectively; and a third coupling site disposed between and spaced from said first and second coupling sites, either one of said first and second conductive members being coupleable to its respective first or second coupling site and to said third site without altering said preselected electrical coupling.
Claim 2
Dependent Claim
86 words
Electronic apparatus comprising a circuit element and means providing preselected electrical coupling to said element, said means including first and second spaced apart coupling sites and first and second conductive members individually coupled to said first and second sites, respectively; and a third coupling site disposed between and spaced from said first and second coupling sites, either one of said first and second conductive members being coupleable to its respective first or second coupling site and to said third site without altering said preselected electrical coupling.
Claim 3
Dependent Claim
81 words
Apparatus as in claim 1, wherein said first, second, and third coupling sites are bonding sites comprising an array of co-linear sites, and including two additional bonding sites co-linear with and on opposite sides of said array in adjacent, spaced relation with each of said first and said second sites, respectively, each of said conductive members being bondable to its respective first or second bonding site and to a site immediately adjacent to either side thereof without altering said preselected contacting.
Claim 4
Dependent Claim
33 words
Apparatus as in claim 1 wherein the coupling sites are bonding sites and additionally including two third bonding sites disposed between and spaced from said first and second sites and from each other.
Claim 5
Dependent Claim
76 words
Apparatus as in claim 3 in which each said conductive member has a width greater than that of its corresponding first or second site, and the spacing between each of said two third bonding sites and its immediately adjacent first or second site is such that each of said conductive members, when substantially aligned with its corresponding first or second bonding site, overlaps each third site on opposite sides of said corresponding first or second site.
Claim 6
Dependent Claim
63 words
Apparatus as in claim 1 including an insulating substrate, said coupling sites comprising metallized areas providing bonding sites on said substrate, said circuit element being mounted on said substrate, and including conductive paths extending between said first and second bonding sites and said element, and said third bonding site being electrically isolated, absent a connection thereto by said conductive members, from said element.
Claim 7
Dependent Claim
171 words
Electronic apparatus comprising: a substrate of insulating material; a first plurality of discrete, spaced bonding pads disposed along an edge of said substrate; a plurality of spaced apart conductive paths on said substrate, with a first end of each of said paths coupled to a respective separate one of a plurality of said first bonding pads; a circuit element mounted on said substrate and electrically coupled to second ends of said paths, thereby providing a preselected electrical interconnection arrangement between said first bonding pads and said element; a plurality of second bonding pads on said substrate interdigitated with and spaced from said first pads along said substrate edge; and a plurality of leads corresponding in number with said first bonding pads bonded one each to a different group of different ones of said pads, each of said pad groups including one of said first pads and at least one of said second pads on either side thereof, the said electrical interconnection arrangement being the same for either side-by-side grouping of pads.
Claim 8
Dependent Claim
171 words
Electronic apparatus comprising: a substrate of insulating material; a first plurality of discrete, spaced bonding pads disposed along an edge of said substrate; a plurality of spaced apart conductive paths on said substrate, with a first end of each of said paths coupled to a respective separate one of a plurality of said first bonding pads; a circuit element mounted on said substrate and electrically coupled to second ends of said paths, thereby providing a preselected electrical interconnection arrangement between said first bonding pads and said element; a plurality of second bonding pads on said substrate interdigitated with and spaced from said first pads along said substrate edge; and a plurality of leads corresponding in number with said first bonding pads bonded one each to a different group of different ones of said pads, each of said pad groups including one of said first pads and at least one of said second pads on either side thereof, the said electrical interconnection arrangement being the same for either side-by-side grouping of pads.
Claim 9
Dependent Claim
36 words
Electronic apparatus as in claim 6 in which said leads overlap said substrate a preselected distance inwardly of said edge, and said second pads extend away from said edge not substantially in excess of said distance.
Claim 10
Dependent Claim
20 words
Electronic apparatus as in claim 6 including two second bonding pads disposed between each pair of adjacent first bonding pads.
Claim 11
Dependent Claim
14 words
Apparatus as recited in claim 6 wherein the circuit element is a semiconductor chip.
Claim 12
Dependent Claim
23 words
Apparatus as recited in claim 6 wherein the leads are bonded from a lead frame which holds the leads in fixed relative relationship.
Claim 13
Dependent Claim
181 words
Electronic apparatus including a circuit element and a plurality of discrete paths for simultaneously coupling a plurality of different electrical signals to and from said element; said paths including: a first plurality of discrete, spaced, intermediate coupling sites disposed in substantially co-linear mutual relationship; a plurality of discrete intermediate paths for coupling electrical signals between a plurality of said first coupling sites and different portions of the circuit element; a second plurality of discrete, spaced coupling sites disposed at least one between each pair of adjacent ones of said first sites, said second sites being spaced from and electrically insulated from the first sites; and said apparatus being adapted for coupling to a plurality of discrete, spaced external coupling paths, corresponding in number with said first sites, such that each path is electrically coupled to a different group of different ones of said sites, each of said groups including at least one of said first sites and at least one of said second sites on either side thereof, the said electrical coupling being the same for either side-by-side grouping of sites.
Claim 14
Dependent Claim
181 words
Electronic apparatus including a circuit element and a plurality of discrete paths for simultaneously coupling a plurality of different electrical signals to and from said element; said paths including: a first plurality of discrete, spaced, intermediate coupling sites disposed in substantially co-linear mutual relationship; a plurality of discrete intermediate paths for coupling electrical signals between a plurality of said first coupling sites and different portions of the circuit element; a second plurality of discrete, spaced coupling sites disposed at least one between each pair of adjacent ones of said first sites, said second sites being spaced from and electrically insulated from the first sites; and said apparatus being adapted for coupling to a plurality of discrete, spaced external coupling paths, corresponding in number with said first sites, such that each path is electrically coupled to a different group of different ones of said sites, each of said groups including at least one of said first sites and at least one of said second sites on either side thereof, the said electrical coupling being the same for either side-by-side grouping of sites.
Claim 15
Dependent Claim
22 words
Apparatus as recited in claim 11 including two of said second sites between each pair of adjacent ones of said first sites.
References Cited (Backward Citations)
US3262022A
Cited
US3287610A
Cited
US3457639A
Cited
US3497947A
Cited
US3546543A
Cited
US3627901A
Cited
US3893156A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-29 | 1980-08-30 | 1981-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-29 | 1984-08-30 | 1985-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-29 | 1988-08-30 | 1989-03-01 | $7700.00 | Window Closed / Lapsed |