Patent US3363152A successfully refreshed from Google Patents.
US3363152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor devices with low leakage current across junction
Assignee: Westinghouse Electric Corp
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Filing: 1964-01-24
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Granted: 1968-01-09
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Expires: 1984-01-24
Abstract
No abstract record available.
Inventors
- 👤 Lin Hung Chang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:24
CPC Classifications
H; H10; H10W; H10W74/00; H10W74/40; H10W74/43; H10D; H10D99/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A SEMICONDUCTOR DEVICE OF THE FIELD EFFECT TYPE COMPRISING: FIRST, SECOND AND THIRD SEMICONDUCTIVE REGIONS OF, RESPECTIVELY, FIRST SECOND AND SECOND CONDUCTIVITY TYPES WITH A P-N JUNCTION BETWEEN SAID FIRST REGION, AND EACH OF SAID SECOND AND THIRD REGIONS, SAID FIRST REGION UNDERLYING AND AT LEAST SUBSTANTIALLY SURROUNDING SAID SECOND REGION; SAID THIRD REGION UNDERLYING AND SURROUNDING SAID FIRST REGION; SAID JUNCTIONS TERMINATING AT A SINGLE PLANER SURFACE OF THE DEVICE; MEANS CONDUCTIVELY INTERCONNECTING SAID SECOND AND THIRD REGIONS; FIRST AND SECOND OHMIC COSTACTS ON SAID SURFACE IN CONTACT WITH SAID FIRST REGION TO SERVE AS SOURCE AND DRAIN CONTACTS; SAID SECOND AND
Claim 2
Dependent Claim
103 words
A SEMICONDUCTOR DEVICE OF THE FIELD EFFECT TYPE COMPRISING: FIRST, SECOND AND THIRD SEMICONDUCTIVE REGIONS OF, RESPECTIVELY, FIRST SECOND AND SECOND CONDUCTIVITY TYPES WITH A P-N JUNCTION BETWEEN SAID FIRST REGION, AND EACH OF SAID SECOND AND THIRD REGIONS, SAID FIRST REGION UNDERLYING AND AT LEAST SUBSTANTIALLY SURROUNDING SAID SECOND REGION; SAID THIRD REGION UNDERLYING AND SURROUNDING SAID FIRST REGION; SAID JUNCTIONS TERMINATING AT A SINGLE PLANER SURFACE OF THE DEVICE; MEANS CONDUCTIVELY INTERCONNECTING SAID SECOND AND THIRD REGIONS; FIRST AND SECOND OHMIC COSTACTS ON SAID SURFACE IN CONTACT WITH SAID FIRST REGION TO SERVE AS SOURCE AND DRAIN CONTACTS; SAID SECOND AND
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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) | 1971-01-08 | 1971-07-10 | 1972-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-08 | 1975-07-10 | 1976-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-08 | 1979-07-10 | 1980-01-09 | $7700.00 | Window Closed / Lapsed |