US3264492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable semiconductor punchthrough device having three junctions
Assignee: Infineon Technologies Americas Corp
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Filing: 1963-08-06
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Granted: 1966-08-02
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Expires: 1983-08-06
Abstract
No abstract record available.
Inventors
- 👤 John M Gault
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:00
CPC Classifications
H; H10; H10D; H10D99/00; H10D30/00; H10D30/80
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A MONOCRYSTALLINE DEVICE COMPRISING A BODY OF SEMICONDUCTIVE MATERIAL HAVING TWO OPPOSED MAJOR SURFACES, A FIRST REGION OF ONE CONDUCTIVITY TYPE EXTENDING TO ONE OF SAID SURFACES AND A SECOND REGION OF OPPOSITE CONDUCTIVITY TYPE EXTENDING TO THE OTHER OF SAID SURFACES, SAID FIRST AND SECONG REGIONS DEFINING A FIRST INTERMEDIATE P-N JUNCTION WHICH IS SUBSTANTIALLY PARALLEL TO SAID SURFACES, A COAXIAL OPENING IN EACH OF SAID SURFACES, A THIRD REGION FORMING A SECOND P-N JUNCTION WITH SAID FIRST REGION AND A FOURTH REGION FORMING A THIRD JUNCTION WITH SAID SECOND REGION, EACH OF SAID THIRD AND FOURTH REGIONS EXTENDING FROM ADJACENT THE BOTTOM OF ONE OF SAID OPENINGS, AN ELECTRODE AT THE BOTTOM OF EACH OF SAID OPENINGS FORMING FIRST AND SECOND ELECTRODES ON EACH OF SAID THIRD AND FOURTH REGIONS RESPECTIVELY, AND
Claim 2
Dependent Claim
134 words
A MONOCRYSTALLINE DEVICE COMPRISING A BODY OF SEMICONDUCTIVE MATERIAL HAVING TWO OPPOSED MAJOR SURFACES, A FIRST REGION OF ONE CONDUCTIVITY TYPE EXTENDING TO ONE OF SAID SURFACES AND A SECOND REGION OF OPPOSITE CONDUCTIVITY TYPE EXTENDING TO THE OTHER OF SAID SURFACES, SAID FIRST AND SECONG REGIONS DEFINING A FIRST INTERMEDIATE P-N JUNCTION WHICH IS SUBSTANTIALLY PARALLEL TO SAID SURFACES, A COAXIAL OPENING IN EACH OF SAID SURFACES, A THIRD REGION FORMING A SECOND P-N JUNCTION WITH SAID FIRST REGION AND A FOURTH REGION FORMING A THIRD JUNCTION WITH SAID SECOND REGION, EACH OF SAID THIRD AND FOURTH REGIONS EXTENDING FROM ADJACENT THE BOTTOM OF ONE OF SAID OPENINGS, AN ELECTRODE AT THE BOTTOM OF EACH OF SAID OPENINGS FORMING FIRST AND SECOND ELECTRODES ON EACH OF SAID THIRD AND FOURTH REGIONS RESPECTIVELY, AND
References Cited (Backward Citations)
GB753133A
Cited
US2927222A
Cited
US2905836A
Cited
US2843515A
Cited
US3162770A
Cited
US2975342A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |