US4648666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical connector
Assignee: NTT Inc
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Filing: 1985-07-03
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Granted: 1987-03-10
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Expires: 2005-07-03
Abstract
Abstract An electrical connector for electrically and mechanically attaching a leadless chip carrier to a printed circuit board. More particularly the connector includes a dielectric frame member having recess along the outwardly facing sides and contacts, received in the recesses, having contact sections extending above and below the frame member and outwardly therefrom for soldered engagement with respective chip carrier and circuit board. Projections extending outwardly from the recesses are received in holes in the contacts to retain the contacts in the recesses.
Inventors
- 👤 Gregory R. Lovell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:09
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/30; H05K3/32; H05K3/34; H05K3/341; H05K3/3421; H05K3/3426; H05K7/00; H05K7/02; H05K7/10; H05K7/1053; H05K7/1061; H05K2201/00; H05K2201/10; H05K2201/10227; H05K2201/10325; H05K2201/10424; H05K2201/10613; H05K2201/10621; H05K2201/10727; H05K2201/10742; H05K2201/10886; H05K2201/10946; Y; Y02; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
157 words
An electrical connector for surface mounting a leadless chip carrier to a printed circuit board, comprising: a dielectric frame member; recesses at spaced intervals along the sides of the frame member; projections extending outwardly from each of said recesses; a plurality of contacts having intermediate sections with each section having a hole therethrough, said contacts being secured along the sides of the frame member with the intermediate sections being disposed in respective recesses with said holes receiving said projections therethrough and said projections being upset to secure said contacts in said recesses; first contact sections of said contacts connected to said intermediate section and extending below and outwardly of said frame for soldered electrical connection with respective conductive pads of the printed circuit board; and second contact sections of said contacts connected to said intermediate section and extending above and outwardly of said frame for soldered electrical connection with respective conductive pads of the leadless chip carrier.
Claim 2
Dependent Claim
157 words
An electrical connector for surface mounting a leadless chip carrier to a printed circuit board, comprising: a dielectric frame member; recesses at spaced intervals along the sides of the frame member; projections extending outwardly from each of said recesses; a plurality of contacts having intermediate sections with each section having a hole therethrough, said contacts being secured along the sides of the frame member with the intermediate sections being disposed in respective recesses with said holes receiving said projections therethrough and said projections being upset to secure said contacts in said recesses; first contact sections of said contacts connected to said intermediate section and extending below and outwardly of said frame for soldered electrical connection with respective conductive pads of the printed circuit board; and second contact sections of said contacts connected to said intermediate section and extending above and outwardly of said frame for soldered electrical connection with respective conductive pads of the leadless chip carrier.
Claim 3
Dependent Claim
20 words
The electrical connector of claim 1 wherein a compliance gap is provided between the recess surface and the intermediate section.
Claim 4
Dependent Claim
36 words
The electrical connector of claim 2 further including locator means on said frame member for locating a leadless chip carrier thereon and for registering conductive pads on the chip carrier with respective said second contact sections.
Claim 5
Dependent Claim
65 words
The electrical connector of claim 3 wherein said locator means include outwardly extending first leg means positioned on adjacent sides of said frame member at each of two diagonally opposite corners and second leg means attached to each of said first leg means and extending therefrom in a direction parallel to the side of said frame member from which respective said first leg means extend.
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) | 1990-03-09 | 1990-09-08 | 1991-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-09 | 1994-09-08 | 1995-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-09 | 1998-09-08 | 1999-03-10 | $7700.00 | Window Closed / Lapsed |