US3407465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Techniques for charting and removing defects in thin film capacitors
Assignee: AT&T Inc
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Filing: 1966-12-08
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Granted: 1968-10-29
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Expires: 1986-12-08
Abstract
No abstract record available.
Inventors
- 👤 William C G Ortel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:17
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/255; Y; Y10; Y10T; Y10T29/00; Y10T29/43; Y10T29/435
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A METHOD FOR ELIMINATING INTERNAL SHORT CIRCUITS IN A THIN FILM CAPACITOR INCLUDING SUCCESSIVELY A SUBSTRATE MEMBER, A LAYER OF A CONDUCTOR, A LAYER OF A DIELECTRIC MATERIAL AND A COUNTERELECTRODE WHICH COMPRISES THE STEPS OF COATING SAID COUNTERELECTRODE WITH A THIN FILM OF A FLUID IN WHICH A SURFACE TENSION GRADIENT CAN BE INDUCED BY HEATING TO INCREASE TENSION, IMPRESSING A DIFFERENCE OF POTENTIAL EVIDENCING A CURRENT RANGING FROM 10-50 MILLIAMPERES PER FAULT, THEREBY GENERATING VOIDS IN SAID LIQUID COATING AT THE SITES OF HIGHLY CONDUCTIVE FAULTS AND REMOVING SAID COUNTERELECTRODE BY ETCHING AT THE SITES OF SAID FAULTS.
Claim 2
Independent Claim
100 words
A METHOD FOR ELIMINATING INTERNAL SHORT CIRCUITS IN A THIN FILM CAPACITOR INCLUDING SUCCESSIVELY A SUBSTRATE MEMBER, A LAYER OF A CONDUCTOR, A LAYER OF A DIELECTRIC MATERIAL AND A COUNTERELECTRODE WHICH COMPRISES THE STEPS OF COATING SAID COUNTERELECTRODE WITH A THIN FILM OF A FLUID IN WHICH A SURFACE TENSION GRADIENT CAN BE INDUCED BY HEATING TO INCREASE TENSION, IMPRESSING A DIFFERENCE OF POTENTIAL EVIDENCING A CURRENT RANGING FROM 10-50 MILLIAMPERES PER FAULT, THEREBY GENERATING VOIDS IN SAID LIQUID COATING AT THE SITES OF HIGHLY CONDUCTIVE FAULTS AND REMOVING SAID COUNTERELECTRODE BY ETCHING AT THE SITES OF SAID FAULTS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |