US3097308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor device with surface electrode producing electrostatic field and circuits therefor
Assignee: RCA Corp
•
Filing: 1959-03-09
•
Granted: 1963-07-09
•
Expires: 1979-03-09
Abstract
No abstract record available.
Inventors
- 👤 John T Wallmark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:36
CPC Classifications
H; H10; H10D; H10D12/00; H10D10/00; H10D30/00; H10D30/80; H10D62/00; H10D62/10; H10D84/00; H10D84/60; H10D84/645; H10D99/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A SEMICONDUCTOR DEVICE COMPRISING A SEMICONDUCTOR BODY HAVING EMITTER AND COLLECTOR REGIONS IN CONTACT THEREWITH FOR INJECTING INTO AND COLLECTING MINORITY CARRIERS FROM SAID BODY, A BASE ELECTRODE CONTACTING SAID BODY, SAID EMITTER REGION CONTACTING A SURFACE OF SAID BODY, SAID EMITTER AND COLLECTOR REGIONS DEFINING THE ENDS OF A CURRENT PATH THROUGH SAID BODY SUBSTANTIALLY NORMAL TO SAID SURFACE, A GENETIC INSULATING LAYER DERIVED FROM SAID BODY COVERING AT LEAST A PORTION OF SAID SURFACE OF SAID SEMICONDUCTOR BODY ADJACENT SAID EMITTER REGION, A CONTROL ELECTRODE ADJACENT SAID GENETIC LAYER FOR ESTABLISHING AN ELECTRIC FIELD THEREIN FOR CONTROLLING THE VELOCITY OF ELECTRON-HOLE RECOMBINATION AT SAID SURFACE OF SAID BODY AND MEANS FOR INDEPENDENTLY BIASING SAID CONTROL ELECTRODE.
Claim 2
Dependent Claim
118 words
A SEMICONDUCTOR DEVICE COMPRISING A SEMICONDUCTOR BODY HAVING EMITTER AND COLLECTOR REGIONS IN CONTACT THEREWITH FOR INJECTING INTO AND COLLECTING MINORITY CARRIERS FROM SAID BODY, A BASE ELECTRODE CONTACTING SAID BODY, SAID EMITTER REGION CONTACTING A SURFACE OF SAID BODY, SAID EMITTER AND COLLECTOR REGIONS DEFINING THE ENDS OF A CURRENT PATH THROUGH SAID BODY SUBSTANTIALLY NORMAL TO SAID SURFACE, A GENETIC INSULATING LAYER DERIVED FROM SAID BODY COVERING AT LEAST A PORTION OF SAID SURFACE OF SAID SEMICONDUCTOR BODY ADJACENT SAID EMITTER REGION, A CONTROL ELECTRODE ADJACENT SAID GENETIC LAYER FOR ESTABLISHING AN ELECTRIC FIELD THEREIN FOR CONTROLLING THE VELOCITY OF ELECTRON-HOLE RECOMBINATION AT SAID SURFACE OF SAID BODY AND MEANS FOR INDEPENDENTLY BIASING SAID CONTROL ELECTRODE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |