US3405331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated gate field effect transistor using lead salt
Assignee: United States Department of the Navy
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Filing: 1966-06-29
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Granted: 1968-10-08
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Expires: 1986-06-29
Abstract
No abstract record available.
Inventors
- 👤 James F Skalski
- 👤 Marcella C Petree
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:15
CPC Classifications
H; H10; H10D; H10D99/00; H10D62/00; H10D62/80; H10P; H10P95/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
47 words
A THIN FILM ACTIVE SEMICONDUCTOR COMPRISING AN INSULATING SUBSTRATE, AN EPITAXIAL SEMICONDUCTOR FILM OF A LEAD SALT DEPOSITED THEREON, AND FIRST AND SECOND SPACED APART OHMIC ELECTRODES FORMING ELECTRICAL JUNCTIONS ON SAID SEMICONDUCTOR FILM, WHEREBY SAID SEMICONDUCTOR MATERIAL PROVIDES A LOW RESISTANCE ELECTICAL PATH BETWEEN SAID ELECTRODES.
Claim 2
Dependent Claim
47 words
A THIN FILM ACTIVE SEMICONDUCTOR COMPRISING AN INSULATING SUBSTRATE, AN EPITAXIAL SEMICONDUCTOR FILM OF A LEAD SALT DEPOSITED THEREON, AND FIRST AND SECOND SPACED APART OHMIC ELECTRODES FORMING ELECTRICAL JUNCTIONS ON SAID SEMICONDUCTOR FILM, WHEREBY SAID SEMICONDUCTOR MATERIAL PROVIDES A LOW RESISTANCE ELECTICAL PATH BETWEEN SAID ELECTRODES.
Claim 3
Dependent Claim
52 words
THE DEVICE OF CLAIM 1 FURTHER COMPRISING BIASING MEANS CONNECTING SAID FIRST AND SECOND ELECTRODES ESTABLISHING AN ELECTRICAL SIGNAL PATH THEREBETWEEN, A THIRD ELECTRODE SEPARATED FROM SAID FIRST AND SECOND ELECTRODES BY A THIN LAYER OF INSULATING MATERIAL, AND MEANS CONNECTED BETWEEN SAID THIRD AND FIRST ELECTRODES FOR MODULATING SAID ELECTRICAL SIGNAL.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |