US3102230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric field controlled semiconductor device
Assignee: AT&T Inc
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Filing: 1960-05-31
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Granted: 1963-08-27
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Expires: 1980-05-31
Abstract
No abstract record available.
Inventors
- 👤 Kahng Dawon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:36
CPC Classifications
H; H10; H10W; H10W74/00; H10W74/40; H10W74/43; H10D; H10D99/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
IN COMBINATION, A SEMICONDUCTOR WAFER INCLUDING AT LEAST A FIRST AND THIRD REGION OF ONE CONDUCTIVITY TYPE SEPARATED BY A SECOND REGION OF THE OPPOSITE CONDUCTIVITY TYPE AND DEFINING RESPECTIVELY A FIRST AND SECOND P-N JUNCTION, SAID FIRST AND SECOND P-N JUNCTIONS INTERSECTING A MAJOR SURFACE OF THE WAFER, A DIELECTRIC COATING OVER AT LEAST SAID MAJOR SURFACE, MEANS FOR IMPRESSING A VOLTAGE ACROSS SAID FIRST AND SECOND P-N JUNCTIONS, MEANS FOR IMPRESSING AN ELECTRIC FIELD ACROSS SAID DIELECTRIC IN A DIRECTION TO ENCOMPASS BOTH SAID DIELECTRIC AND SAID SEMICONDUCTOR WAFER, SAID ELECTRIC FIELD BEING PARTICUALARLY CHARACTERIZED IN THAT IT IS RESPONSIVE TO VARIATIONS IN THE VOLTAGE ACROSS SAID FIRST AND SECOND P-N JUNCTIONS.
Claim 2
Dependent Claim
114 words
IN COMBINATION, A SEMICONDUCTOR WAFER INCLUDING AT LEAST A FIRST AND THIRD REGION OF ONE CONDUCTIVITY TYPE SEPARATED BY A SECOND REGION OF THE OPPOSITE CONDUCTIVITY TYPE AND DEFINING RESPECTIVELY A FIRST AND SECOND P-N JUNCTION, SAID FIRST AND SECOND P-N JUNCTIONS INTERSECTING A MAJOR SURFACE OF THE WAFER, A DIELECTRIC COATING OVER AT LEAST SAID MAJOR SURFACE, MEANS FOR IMPRESSING A VOLTAGE ACROSS SAID FIRST AND SECOND P-N JUNCTIONS, MEANS FOR IMPRESSING AN ELECTRIC FIELD ACROSS SAID DIELECTRIC IN A DIRECTION TO ENCOMPASS BOTH SAID DIELECTRIC AND SAID SEMICONDUCTOR WAFER, SAID ELECTRIC FIELD BEING PARTICUALARLY CHARACTERIZED IN THAT IT IS RESPONSIVE TO VARIATIONS IN THE VOLTAGE ACROSS SAID FIRST AND SECOND P-N JUNCTIONS.
References Cited (Backward Citations)
US2918628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |