US3886415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capacitor with photo-conductive dielectric
Assignee: Northrop Grumman Guidance and Electronics Co Inc
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Filing: 1972-11-24
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Granted: 1975-05-27
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Expires: 1992-11-24
Abstract
Abstract An electrical component production method wherein an electrically conductive image electrode is exposed and photographically developed on the surface of a substrate supported photoconductive layer.
Inventors
- 👤 James E Genthe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:00
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/10; H05K3/18; H05K3/181; H05K3/182; H05K3/185; G; G03; G03C; G03C1/00; G03C1/705; G03G; G03G17/00; G03G17/02; H01; H01G; H01G13/00; H01G4/00; H01G4/002; H01G4/018; H01G4/06; H01G4/08; H01G4/10; H05K1/00; H05K1/16; H05K1/162; H10; H10N; H10N97/00; H05K1/02; H05K1/03; H05K1/0393; H05K2201/00; H05K2201/02; H05K2201/0203; H05K2201/0206; H05K2201/0209; H05K2201/09; H05K2201/09209; H05K2201/09654; H05K2201/09672; H05K2201/09763; H05K2203/00; H05K2203/05; H05K2203/0502; H05K2203/0517; H05K3/12; H05K3/1266
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
100 words
AN ELECTRICAL DEVICE COMPRISING A BASE HAVING OPPOSITELY FACING FIRST AND SECOND SURFACES FORMED OF PHOTOCONDUCTIVE MATERIAL OF (1) SUFFICIENT PHOTOSENSITIVITY THAT UPON EXPOSURE TO ACTINIC LIGHT AND CONTACT WITH A PHYSICAL DEVELOPER AN ELECTRICALLY CONDUCTIVE METAL IMAGE IS PRODUCED AND (2) POSSESSED OF DIELECTRIC PROPERTIES SUFFICIENT TO MAKE THE MATERIAL SUITABLE AS THE DIELECTRIC LAYER IN AN ELECTRICAL CAPACITOR, A FIRST ELECTRICALLY CONDUCTIVE ELECTRODE ON SAID FIRSE PHOTOCONDUCTIVE MATERIAL SURFACE, AND A SECOND ELECTRICALLY CONDUCTIVE ELECTRODE ON SAID SECOND PHOTOCONDUCTIVE MATERIAL SURFACE WHEREIN SAID BASE COMPRISES AN ELECTRICALLY INSULATING SUBSTRATE WITH OPPOSITE FACES SUPPORTING DEPOSITED LAYERS OF PHOTOCONDUCTIVE MATERIAL.
Claim 2
Dependent Claim
100 words
AN ELECTRICAL DEVICE COMPRISING A BASE HAVING OPPOSITELY FACING FIRST AND SECOND SURFACES FORMED OF PHOTOCONDUCTIVE MATERIAL OF (1) SUFFICIENT PHOTOSENSITIVITY THAT UPON EXPOSURE TO ACTINIC LIGHT AND CONTACT WITH A PHYSICAL DEVELOPER AN ELECTRICALLY CONDUCTIVE METAL IMAGE IS PRODUCED AND (2) POSSESSED OF DIELECTRIC PROPERTIES SUFFICIENT TO MAKE THE MATERIAL SUITABLE AS THE DIELECTRIC LAYER IN AN ELECTRICAL CAPACITOR, A FIRST ELECTRICALLY CONDUCTIVE ELECTRODE ON SAID FIRSE PHOTOCONDUCTIVE MATERIAL SURFACE, AND A SECOND ELECTRICALLY CONDUCTIVE ELECTRODE ON SAID SECOND PHOTOCONDUCTIVE MATERIAL SURFACE WHEREIN SAID BASE COMPRISES AN ELECTRICALLY INSULATING SUBSTRATE WITH OPPOSITE FACES SUPPORTING DEPOSITED LAYERS OF PHOTOCONDUCTIVE MATERIAL.
Claim 3
Dependent Claim
34 words
An electrical device according to claim 1 wherein said first image comprises a first electrode, and said second image comprises a second electrode aligned with said first electrode and forming therewith an electrical capacitor.
Claim 4
Dependent Claim
35 words
An electrical device according to claim 1 wherein said first image comprises first electrical circuit portions, and said second image comprises second electrical circuit portions aligned with said first portions and forming therewith electrical components.
Claim 5
Dependent Claim
14 words
An electrical device according to claim 1 wherein said photoconductive layer comprises titanium dioxide.
References Cited (Backward Citations)
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US3310432A
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US3390012A
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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) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |