US3140452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-frequency tunnel diode circuit
Assignee: US Philips Corp
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Filing: 1961-09-14
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Granted: 1964-07-07
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Expires: 1981-09-14
Abstract
No abstract record available.
Inventors
- 👤 Albert Schmitz
- 👤 Boudewijn Bollee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:02
CPC Classifications
H; H03; H03B; H03B1/00; H03B1/04; H03B7/00; H03B7/02; H03B7/06; H03B7/08; H03B7/12; H03B7/14; H03B7/143; H03F; H03F3/00; H03F3/04; H03F3/10; H03F3/12; H10; H10D; H10D99/00; H10P; H10P10/00; H10P10/12; H10P95/00; H03B2201/00; H03B2201/02; H03B2201/0208
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A HIGH-FREQUENCY CIRCUIT ARRANGEMENT COMPRISING A TUNNEL DIODE, AN ADDITIONAL SEMICONDUCTOR DIODE COMPRISING A P-N-JUNCTION, A SUPPLY VOLTAGE SOURCE, MEANS CONNECTING THE ADDITIONAL DIODE TO THE VOLTAGE SOURCE SO AS TO BIAS ITS JUNCTION IN THE FORWARD DIRECTION WHEREBY THE ADDITIONAL DIODE EXHIBITS A LOW RESISTANCE BUT A COMPARATIVELY LARGE PARALLEL CAPACITANCE, AND A LOAD COUPLED IN SERIES WITH THE TUNNEL DIODE ACROSS THE ADDITIONAL DIODE IN SUCH MANNER THAT THE DIRECT-CURRENT VOLTAGE APPLIED ACROSS THE TUNNEL DIODE TO BIAS IT IN THE FORWARD DIRECTION IS CONTROLLED BY THAT EXISTING ACROSS THE ADDITIONAL DIODE.
Claim 2
Dependent Claim
94 words
A HIGH-FREQUENCY CIRCUIT ARRANGEMENT COMPRISING A TUNNEL DIODE, AN ADDITIONAL SEMICONDUCTOR DIODE COMPRISING A P-N-JUNCTION, A SUPPLY VOLTAGE SOURCE, MEANS CONNECTING THE ADDITIONAL DIODE TO THE VOLTAGE SOURCE SO AS TO BIAS ITS JUNCTION IN THE FORWARD DIRECTION WHEREBY THE ADDITIONAL DIODE EXHIBITS A LOW RESISTANCE BUT A COMPARATIVELY LARGE PARALLEL CAPACITANCE, AND A LOAD COUPLED IN SERIES WITH THE TUNNEL DIODE ACROSS THE ADDITIONAL DIODE IN SUCH MANNER THAT THE DIRECT-CURRENT VOLTAGE APPLIED ACROSS THE TUNNEL DIODE TO BIAS IT IN THE FORWARD DIRECTION IS CONTROLLED BY THAT EXISTING ACROSS THE ADDITIONAL DIODE.
References Cited (Backward Citations)
US3018423A
Cited
US3040186A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |