US3372315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron tunnel emission device exhibiting approximately 0.9 current transfer ratio
Assignee: Texas Instruments Inc
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Filing: 1967-02-27
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Granted: 1968-03-05
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Expires: 1987-02-27
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Hartman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:51
CPC Classifications
H; H10; H10D; H10D62/00; H10D62/10; H10D62/13; H10D62/165
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A SOLID-STATE ELECTRON DEVICE COMPRISING FIRST, AND SECOND CONDUCTIVE METAL LAYERS SEPARATED BY A FIRST INSULATING LAYER, SAID SECOND CONDUCTIVE METAL LAYER BEING ALUMINUM AND HAVING A THICKNESS OF ABOUT 70 ANGSTROM UNITS, AND FIRST INSULATING LAYER BEING ALUMINUM OXIDE AND HAVING A THICKNESS FROM ABOUT 25 TO ABOUT 50 ANGSTROM UNITS, A LAYER OF MICA ADJACENT SAID SECOND CONDUCTIVE METAL LAYER, SAID LAYER OF MUSCOVITE HAVING A THICKNESS FROM ABOUT 100 TO ABOUT 10,000 ANGSTROM UNITS, A THIRD CONDUCTIVE METAL LAYER ADJACENT SAID LAYER OF MISCOVITE AND OPPOSITE SAID CONDUCTIVE METAL LAYER, AND BIAS MEANS ON SAID FIRST AND SECOND METAL LAYERS FOR PRODUCING A CURRENT TRANSFER OF APPROXIMATELY 0.9.
Claim 2
Dependent Claim
111 words
A SOLID-STATE ELECTRON DEVICE COMPRISING FIRST, AND SECOND CONDUCTIVE METAL LAYERS SEPARATED BY A FIRST INSULATING LAYER, SAID SECOND CONDUCTIVE METAL LAYER BEING ALUMINUM AND HAVING A THICKNESS OF ABOUT 70 ANGSTROM UNITS, AND FIRST INSULATING LAYER BEING ALUMINUM OXIDE AND HAVING A THICKNESS FROM ABOUT 25 TO ABOUT 50 ANGSTROM UNITS, A LAYER OF MICA ADJACENT SAID SECOND CONDUCTIVE METAL LAYER, SAID LAYER OF MUSCOVITE HAVING A THICKNESS FROM ABOUT 100 TO ABOUT 10,000 ANGSTROM UNITS, A THIRD CONDUCTIVE METAL LAYER ADJACENT SAID LAYER OF MISCOVITE AND OPPOSITE SAID CONDUCTIVE METAL LAYER, AND BIAS MEANS ON SAID FIRST AND SECOND METAL LAYERS FOR PRODUCING A CURRENT TRANSFER OF APPROXIMATELY 0.9.
References Cited (Backward Citations)
US3258608A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |