US4727456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leadless electronic component carrier
Assignee: Nortel Networks Corp
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Filing: 1986-05-06
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Granted: 1988-02-23
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Expires: 2006-05-06
Abstract
Abstract A carrier for leadless electrical and electronic components has a plurality of recesses, for reception of components. Electrically conductive paths formed on surfaces in the recesses make contact with contacts on the components. The conductive paths extend onto a bottom surface of the carrier and over protrusions or feet on the bottom surface. The protrusions make contact with contact pads on a circuit pattern on a circuit board. The carrier holds components which otherwise could be as readily mounted to the surface of a circuit board as can the carrier. A high number of components per unit surface area of a circuit board can be mounted via the carrier. The carrier can be positioned by an automated apparatus.
Inventors
- 👤 Mahendra C. Mehta
- 👤 Dirk J. Van Dalen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:32
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/02; H05K7/10; H05K7/1053; H05K7/1076; H05K3/00; H05K3/30; H05K3/301; H05K3/32; H05K3/34; H05K3/341; H05K3/3431; H05K3/3442; H05K2201/00; H05K2201/09; H05K2201/09009; H05K2201/09045; H05K2201/10; H05K2201/10431; H05K2201/10568; Y; Y02; Y02P; Y02P70/00; Y02P70/50; Y10; Y10S; Y10S439/00; Y10S439/931
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
100 words
A carrier for leadless electronic components comprising a dielectric member having top and bottom surfaces; a multiplicity of elongated recesses, each extending transversely across a major portion of and down from said top surface, said recesses having a depth and extending in a parallel array, a plurality of protrusions extending from said bottom surface, said protrusions positioned to provide a mounting for said dielectric member; and electrically conductive paths on surfaces of said recesses, said conductive paths extending to and over said protrusions, contacts on the components making contact with said conductive paths on insertion of components into the carrier.
Claim 2
Dependent Claim
100 words
A carrier for leadless electronic components comprising a dielectric member having top and bottom surfaces; a multiplicity of elongated recesses, each extending transversely across a major portion of and down from said top surface, said recesses having a depth and extending in a parallel array, a plurality of protrusions extending from said bottom surface, said protrusions positioned to provide a mounting for said dielectric member; and electrically conductive paths on surfaces of said recesses, said conductive paths extending to and over said protrusions, contacts on the components making contact with said conductive paths on insertion of components into the carrier.
Claim 3
Dependent Claim
92 words
A carrier for leadless electronic components, comprising a dielectric member having top and bottom surfaces; a multiplicity of elongated recesses extending down from said top surface, said recesses extending in a parallel array in a single row, a plurality of protrusions extending from said bottom surface, said protrusions positioned to provide a mounting for said dielectric member; and electrically conductive paths on surfaces of said recesses, said conductive paths extending to and over said protrusions, contacts on the components making contact with said conductive paths on insertion of components into the carrier.
Claim 4
Dependent Claim
92 words
A carrier for leadless electronic components, comprising a dielectric member having top and bottom surfaces; a multiplicity of elongated recesses extending down from said top surface, said recesses extending in a parallel array in a single row, a plurality of protrusions extending from said bottom surface, said protrusions positioned to provide a mounting for said dielectric member; and electrically conductive paths on surfaces of said recesses, said conductive paths extending to and over said protrusions, contacts on the components making contact with said conductive paths on insertion of components into the carrier.
Claim 5
Dependent Claim
93 words
A carrier for leadless electronic components comprising a dielectric member having top and bottom surfaces; a multiplicity of elongated recesses extending down from said top surface, said recesses extending in a parallel array in a plurality of rows, a plurality of protrusions extending from sid bottom surface, said protrusions positioned to provide a mounting for said dielectric member; and electrically conductive paths on surfaces of said recesses, said conductive paths extending to and over said protrusions, contacts on the components making contact with said conductive paths on insertion of components into the carrier.
Claim 6
Dependent Claim
93 words
A carrier for leadless electronic components comprising a dielectric member having top and bottom surfaces; a multiplicity of elongated recesses extending down from said top surface, said recesses extending in a parallel array in a plurality of rows, a plurality of protrusions extending from sid bottom surface, said protrusions positioned to provide a mounting for said dielectric member; and electrically conductive paths on surfaces of said recesses, said conductive paths extending to and over said protrusions, contacts on the components making contact with said conductive paths on insertion of components into the carrier.
Claim 7
Dependent Claim
97 words
A carrier for leadless electronic components comprising a dielectric member having top and bottom surfaces; a multiplicity of elongated recesses extending down from said top surface, said recesses extending in a parallel array, a plurality of protrusions extending from said bottom surface, each of said protrusions being aligned with a recess, said protrusions positioned to provide a mounting for said dielectric member; and electrically conductive paths on surfaces of said recesses, said conductive paths extending to and over said protrusions, contacts on the components making contact with said conductive paths on insertion of components into the carrier.
Claim 8
Dependent Claim
97 words
A carrier for leadless electronic components comprising a dielectric member having top and bottom surfaces; a multiplicity of elongated recesses extending down from said top surface, said recesses extending in a parallel array, a plurality of protrusions extending from said bottom surface, each of said protrusions being aligned with a recess, said protrusions positioned to provide a mounting for said dielectric member; and electrically conductive paths on surfaces of said recesses, said conductive paths extending to and over said protrusions, contacts on the components making contact with said conductive paths on insertion of components into the carrier.
Claim 9
Dependent Claim
103 words
A carrier for leadless electronic components comprising a dielectric member having top and bottom surfaces; a multiplicity of elongated recesses extending down from said top surface, said recesses extending in a parallel array and a further recess extending normal to and intermediate of the ends of said recesses, a plurality of protrusions extending from said bottom surface, said protrusions positioned to provide a mounting for said dielectric member; and electrically conductive paths on surfaces of said recesses, said conductive paths extending to and over said protrusions, contacts on the components making contact with said conductive paths on insertion of components into the carrier.
Claim 10
Dependent Claim
103 words
A carrier for leadless electronic components comprising a dielectric member having top and bottom surfaces; a multiplicity of elongated recesses extending down from said top surface, said recesses extending in a parallel array and a further recess extending normal to and intermediate of the ends of said recesses, a plurality of protrusions extending from said bottom surface, said protrusions positioned to provide a mounting for said dielectric member; and electrically conductive paths on surfaces of said recesses, said conductive paths extending to and over said protrusions, contacts on the components making contact with said conductive paths on insertion of components into the carrier.
Claim 11
Dependent Claim
27 words
A carrier as claimed in claim 5, said further recess extending through to said bottom surface, said recesses extending to a predetermined distance from said bottom surface.
Claim 12
Dependent Claim
39 words
A carrier as claimed in claim 5, said electrical conductive paths each comprising a metal strip extending down a surface of each said recesses, said strip continuing to said further recess, through said further recess and over said protrusions.
Claim 13
Dependent Claim
92 words
A carrier for leadless electronic components comprising a dielectric member having top and bottom surfaces; a multiplicity of elongated recesses extending down from said top surface, said recesses extending in a parallel array in a stepped configuration, a plurality of protrusions extending from said bottom surface, said protrusions positioned to provide a mounting for said dielectric member; and electrically conductive paths on surfaces of said recesses, said conductive paths extending to and over said protrusions, contacts on the components making contact with said conductive paths on insertion of components into the carrier.
Claim 14
Dependent Claim
92 words
A carrier for leadless electronic components comprising a dielectric member having top and bottom surfaces; a multiplicity of elongated recesses extending down from said top surface, said recesses extending in a parallel array in a stepped configuration, a plurality of protrusions extending from said bottom surface, said protrusions positioned to provide a mounting for said dielectric member; and electrically conductive paths on surfaces of said recesses, said conductive paths extending to and over said protrusions, contacts on the components making contact with said conductive paths on insertion of components into the carrier.
Claim 15
Dependent Claim
38 words
A carrier as claimed in claim 8, each of said recesses extending a predetermined distance at an upper part and extending a reduced distance at a lower part, to form a step intermediate the top and bottom surfaces.
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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) | 1991-02-22 | 1991-08-24 | 1992-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-22 | 1995-08-24 | 1996-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-22 | 1999-08-24 | 2000-02-23 | $7700.00 | Window Closed / Lapsed |