US4401844A
Expired / Lapsed
US
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Power supply bar comprising a stack of 2 n metal layers separated by 2 n dielectric layers
Assignee: LCC-CICE EUROPEENNE DE COMPOSANT ELECTRONIQUES Cie
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Filing: 1981-11-24
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Granted: 1983-08-30
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Expires: 2001-11-24
Abstract
Abstract A power supply bar with low characteristic impedance is provided for transmitting an electric signal from a source to a plurality of receivers, the supply bar comprising particularly two conducting bars conveying the signal, separated by a stack of metal-coated dielectric film forming an assembly of 2 n dielectric films, identical or different, separated by 2 n metal layers, the metal layers in even and uneven rows being respectively connected together laterally by electric connections, the conducting bars being fixed on each side of the stack and connected electrically respectively to one of the lateral electric connections.
Inventors
- 👤 Daniel Fleuret
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:13
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/02; H05K1/0213; H05K1/0263; H01; H01P; H01P3/00; H01P3/02; H01P3/08; H02; H02G; H02G5/00; H02G5/005; H05K2201/00; H05K2201/10; H05K2201/10227; H05K2201/10272; H05K2201/10431; H05K2201/10507; H05K2201/10515; H05K2201/10613; H05K2201/10621; H05K2201/10689
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
91 words
A low characteristic impedance bus-bar for transmitting an electric signal from a source to a plurality of receivers, said bus-bar comprising two conducting bars conveying the signal, separated by dielectric means formed by a stack of metal-coated dielectric films forming an assembly of 2 n dielectric films separated by 2 n metal layers, the metal layers of even and uneven rows being respectively connected together laterally by electric connections, said conducting bars being secured on each side of the stack and connected electrically respectively to one of said lateral electric connections.
Claim 2
Dependent Claim
91 words
A low characteristic impedance bus-bar for transmitting an electric signal from a source to a plurality of receivers, said bus-bar comprising two conducting bars conveying the signal, separated by dielectric means formed by a stack of metal-coated dielectric films forming an assembly of 2 n dielectric films separated by 2 n metal layers, the metal layers of even and uneven rows being respectively connected together laterally by electric connections, said conducting bars being secured on each side of the stack and connected electrically respectively to one of said lateral electric connections.
Claim 3
Dependent Claim
17 words
The bus-bar as claimed in claim 1, wherein said dielectric films are metal-coated on only one face.
Claim 4
Dependent Claim
16 words
The bus-bar as claimed in claim 1, wherein said dielectric films are metal-coated on both faces.
Claim 5
Dependent Claim
19 words
The bus-bar as claimed in claim 1, wherein said conducting bars and said stack are separated by cushion-forming means.
Claim 6
Dependent Claim
21 words
The bus-bar as claimed in claim 4, wherein said cushion-forming means have a thickness greater than or equal to 10 microns.
Claim 7
Dependent Claim
20 words
The bus-bar as claimed in one of claims 4 or 5, wherein said cushion-forming means are formed by an adhesive.
Claim 8
Dependent Claim
43 words
The bus-bar as claimed in claim 6, wherein said adhesive situated in the vicinity of the electric connection to which one conducting bar is connected is an electrically conducting adhesive, whereas that situated in the vicinity of the other electric connection is insulating.
Claim 9
Dependent Claim
22 words
The bus-bar as claimed in claim 4 or 5, wherein said cushion-forming means are formed by at least one electrically inactive layer.
Claim 10
Dependent Claim
23 words
The bus-bar as claimed in claim 8, wherein one at least of the electrically inactive layers is formed by a flexible dielectric film.
Claim 11
Dependent Claim
27 words
The bus-bar as claimed in claim 9, wherein said flexible dielectric film is made solid with the films forming the stack by means of lateral electrical connections.
Claim 12
Dependent Claim
29 words
The bus-bar as claimed in claim 1, wherein said stack of metal-coated films also comprises m adhesive layers disposed between the 2 n layers of metal-coated films, with 1≦m≦2n-1.
Claim 13
Dependent Claim
19 words
The bus-bar as claimed in claim 11, wherein each adhesive layer thickness is between 0.2 micron and 2 microns.
Claim 14
Dependent Claim
30 words
The bus-bar as claimed in claim 1, wherein said conducting bars are provided, on one of their edges, with connecting lugs evenly spread out over the whole of their length.
Claim 15
Dependent Claim
33 words
The bus-bar as claimed in claim 1, wherein said dielectric film is selected from a material from the group consisting of paper, polyesters, polyolefins, polycarbonate, polysulfone, polyamides, polyimides, polyamides-imides, polytetrafluoroethylene and vinylidene polyfluoride.
Claim 16
Dependent Claim
28 words
The bus-bar as claimed in claim 1, wherein said metal layers are formed from a metal selected from the group consisting of aluminum, zinc, silver, gold and copper.
Claim 17
Dependent Claim
30 words
The bus-bar as claimed in claim 1, wherein the number of dielectric film layers is between four and twenty, the total thickness of said bus-bar being less than 3 mm.
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) | 1986-08-29 | 1987-02-28 | 1987-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-29 | 1991-02-28 | 1991-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-29 | 1995-02-28 | 1995-08-30 | $7700.00 | Window Closed / Lapsed |