US3069604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tunnel diode
Assignee: Monsanto Chemicals Ltd
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Filing: 1960-08-17
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Granted: 1962-12-18
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Expires: 1980-08-17
Abstract
No abstract record available.
Inventors
- 👤 Ruehrwein Robert Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:05
CPC Classifications
H; H10; H10D; H10D99/00; H10D8/00; H10D8/70; H10P; H10P95/00; H10P95/50; Y; Y10; Y10S; Y10S148/00; Y10S148/065; Y10S148/113; Y10S438/00; Y10S438/979
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A TUNNEL DIODE COMPRISING A SEMICONDUCTOR BODY OF CUBIC BORON PHOSPHIDE HAVING A CARRIER DENSITY HIGH ENOUGH THAT THE BODY IS CAPABLE OF FORMING P-N JUNCTIONS WITH NEGATIVE RESISTANCE CHARACTERISTICS, A FIRST CONDUCTOR ATTACHED TO SAID SEMICONDUCTOR BODY FORMING AN OHMIC JUNCTION THEREWITH, AND A SECOND CONDUCTOR ATTACHED TO SAID SEMICONDUCTOR BODY WHEREBY A P-N JUNCTION WITH A BARRIER REGION THIN ENOUGH TO PERMIT SUBSTANTIAL TUNNEL CURRENT IS FORMED.
Claim 2
Dependent Claim
69 words
A TUNNEL DIODE COMPRISING A SEMICONDUCTOR BODY OF CUBIC BORON PHOSPHIDE HAVING A CARRIER DENSITY HIGH ENOUGH THAT THE BODY IS CAPABLE OF FORMING P-N JUNCTIONS WITH NEGATIVE RESISTANCE CHARACTERISTICS, A FIRST CONDUCTOR ATTACHED TO SAID SEMICONDUCTOR BODY FORMING AN OHMIC JUNCTION THEREWITH, AND A SECOND CONDUCTOR ATTACHED TO SAID SEMICONDUCTOR BODY WHEREBY A P-N JUNCTION WITH A BARRIER REGION THIN ENOUGH TO PERMIT SUBSTANTIAL TUNNEL CURRENT IS FORMED.
References Cited (Backward Citations)
DE719873C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |