Patent US3176146A successfully refreshed from Google Patents.
US3176146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor switch utilizing low temperature and low impurity content
Assignee: Bendix Corp
•
Filing: 1959-09-24
•
Granted: 1965-03-30
•
Expires: 1979-09-24
Abstract
No abstract record available.
Inventors
- 👤 Jr William Crawford Dunlap
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:21
CPC Classifications
H; H10; H10P; H10P95/00; H03; H03K; H03K17/00; H04; H04N; H04N3/00; H04N3/10; H04N3/12; H10D; H10D48/00; H10D48/387; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/856; Y10S505/857; Y10S505/86
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A SOLID STATE SWITCHING APPARATUS COMPRISING A BODY OF SEMICONDUCTOR MATERIAL HAVING INHERENT LATTICE VIBRATIONS, MEANS TO LOWER THE TEMPERATURE OF SAID BODY TO A TEMPERATURE OF 20* KELVIN OR LESS TO REDUCE SAID VIBRATIONS THEREBY PROVIDING A RELATIVELY FREE PATH FOR CARRIER FLOW THROUGH THE SEMICONDUCTOR BODY, AN INPUT ELECTRODE FORMING AN OHMIC CONTACT WITH SAID BODY, OUTPUT ELECTRODES EACH FORMING AN OHMIC CONTACT WITH SAID BODY, MEANS TO CAUSE A CURRENT FLOW BETWEEN SAID INPUT ELECTRODE AND ONE OF SAID OUTPUT ELECTRODES, MEANS TO ESTABLISH AN ELECTRIC FIELD THROUGH SAID BODY IN ELECTRODE TO ONE OF SAID OUTPUT ELECTRODES AND TO ESTAB-
Claim 2
Dependent Claim
104 words
A SOLID STATE SWITCHING APPARATUS COMPRISING A BODY OF SEMICONDUCTOR MATERIAL HAVING INHERENT LATTICE VIBRATIONS, MEANS TO LOWER THE TEMPERATURE OF SAID BODY TO A TEMPERATURE OF 20* KELVIN OR LESS TO REDUCE SAID VIBRATIONS THEREBY PROVIDING A RELATIVELY FREE PATH FOR CARRIER FLOW THROUGH THE SEMICONDUCTOR BODY, AN INPUT ELECTRODE FORMING AN OHMIC CONTACT WITH SAID BODY, OUTPUT ELECTRODES EACH FORMING AN OHMIC CONTACT WITH SAID BODY, MEANS TO CAUSE A CURRENT FLOW BETWEEN SAID INPUT ELECTRODE AND ONE OF SAID OUTPUT ELECTRODES, MEANS TO ESTABLISH AN ELECTRIC FIELD THROUGH SAID BODY IN ELECTRODE TO ONE OF SAID OUTPUT ELECTRODES AND TO ESTAB-
References Cited (Backward Citations)
US2869001A
Cited
US2553490A
Cited
US2687484A
Cited
US2794863A
Cited
US2736822A
Cited
US2974236A
Cited
US2890359A
Cited
US2805347A
Cited
US2979668A
Cited
US2944167A
Cited
US2930908A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |