US3182492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized tunnel diode stress sensing devices
Assignee: AT&T Inc
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Filing: 1962-10-04
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Granted: 1965-05-11
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Expires: 1982-10-04
Abstract
No abstract record available.
Inventors
- 👤 Mathew E Sikorski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:12
CPC Classifications
H; H10; H10D; H10D48/00; H10D48/50; G; G01; G01B; G01B7/00; G01B7/16; G01L; G01L1/00; G01L1/18; H04; H04R; H04R21/00; H04R21/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN COMBINATION, A FIRST TUNNEL DIODE FORMED ON A P-TYPE WAFER OF A SEMICONDUCTIVE MATERIAL, A SECOND TUNNEL DIODE FORMED ON AN N-TYPE WAFER OF THE SAME SEMICONDUCTIVE MATERIAL, THE DIODES BEING CONNECTED ELECTRICALLY IN PARALLEL, MEANS FOR BIASING SAID TUNNEL DIODES TO SUBSTANTIALLY THE VOLTAGE BELOW THE NEGATIVE RESISTANCE REGION OF SAID DIODES AT WHICH THE CURRENT THROUGH THEM BECOMES A MAXIMUM, MEANS FOR SUBJECTING BOTH OF SAID TUNNEL DIODES TO A SPECIFIC STRESS, AND MEANS FOR DETERMINING THE CHANGE IN THE CURRENT THROUGH THE DIODES RESULTING FROM THE APPLICATION OF THE STRESS.
Claim 2
Dependent Claim
94 words
IN COMBINATION, A FIRST TUNNEL DIODE FORMED ON A P-TYPE WAFER OF A SEMICONDUCTIVE MATERIAL, A SECOND TUNNEL DIODE FORMED ON AN N-TYPE WAFER OF THE SAME SEMICONDUCTIVE MATERIAL, THE DIODES BEING CONNECTED ELECTRICALLY IN PARALLEL, MEANS FOR BIASING SAID TUNNEL DIODES TO SUBSTANTIALLY THE VOLTAGE BELOW THE NEGATIVE RESISTANCE REGION OF SAID DIODES AT WHICH THE CURRENT THROUGH THEM BECOMES A MAXIMUM, MEANS FOR SUBJECTING BOTH OF SAID TUNNEL DIODES TO A SPECIFIC STRESS, AND MEANS FOR DETERMINING THE CHANGE IN THE CURRENT THROUGH THE DIODES RESULTING FROM THE APPLICATION OF THE STRESS.
References Cited (Backward Citations)
US2632062A
Cited
US2929885A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-10 | 1968-11-09 | 1969-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-10 | 1972-11-09 | 1973-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-10 | 1976-11-09 | 1977-05-11 | $7700.00 | Window Closed / Lapsed |