US3114867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unipolar transistors and assemblies therefor
Assignee: RCA Corp
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Filing: 1960-09-21
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Granted: 1963-12-17
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Expires: 1980-09-21
Abstract
No abstract record available.
Inventors
- 👤 Michael E Szekely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:37
CPC Classifications
H; H10; H10B; H10B20/00; H10D; H10D99/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A SEMICONDUCTOR DEVICE COMPRISING A BODY OF SEMICONDUCTIVE MATERIAL HAVING FIRST AND SECOND OPPOSED SURFACES, SAID BODY INCLUDING A FIRST REGION OF ONE CONDUCTIVITY TYPE AND A SECOND REGION OF OPPOSITE CONDUCTIVITY TYPE WITH A PN JUNCTION THEREBETWEEN, SAID SECOND REGION EXTENDING PARTIALLY THROUGH SAID BODY FROM A LIMITED PORTION OF SAID FIRST SURFACE, OHMIC CONNECTIONS TO SAID FIRST REGION ON SAID FIRST SURFACE DISPOSED ON OPPOSITE SIDES OF SAID SECOND REGION, AND TWO AREAS OF GOOD ELECTRICAL CONDUCTIVITY ON SAID SECOND SURFACE, SAID AREAS HAVING A GAP THEREBETWEEN LOCATED OPPOSITE SAID SECOND REGION.
Claim 2
Dependent Claim
94 words
A SEMICONDUCTOR DEVICE COMPRISING A BODY OF SEMICONDUCTIVE MATERIAL HAVING FIRST AND SECOND OPPOSED SURFACES, SAID BODY INCLUDING A FIRST REGION OF ONE CONDUCTIVITY TYPE AND A SECOND REGION OF OPPOSITE CONDUCTIVITY TYPE WITH A PN JUNCTION THEREBETWEEN, SAID SECOND REGION EXTENDING PARTIALLY THROUGH SAID BODY FROM A LIMITED PORTION OF SAID FIRST SURFACE, OHMIC CONNECTIONS TO SAID FIRST REGION ON SAID FIRST SURFACE DISPOSED ON OPPOSITE SIDES OF SAID SECOND REGION, AND TWO AREAS OF GOOD ELECTRICAL CONDUCTIVITY ON SAID SECOND SURFACE, SAID AREAS HAVING A GAP THEREBETWEEN LOCATED OPPOSITE SAID SECOND REGION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-16 | 1967-06-17 | 1967-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-16 | 1971-06-17 | 1971-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-16 | 1975-06-17 | 1975-12-17 | $7700.00 | Window Closed / Lapsed |