US3236698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductive device and method of making the same
Assignee: Clevite Corp
•
Filing: 1964-04-08
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Granted: 1966-02-22
•
Expires: 1984-04-08
Abstract
No abstract record available.
Inventors
- 👤 Shockley William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:33
CPC Classifications
H; H10; H10D; H10D8/00; H10D8/80; H10D62/00; H10D62/10; H10D62/102; H10D62/103; H10D62/105; H10D62/108; H10D62/117; H10D62/60; H10D8/20; H10D8/25; H10D8/50; H10P; H10P95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A SEMICONDUCTOR DEVICE COMPRISING A BODY OF ONE CONDUCTIVITY TYPE AND AT LEAST ONE REGION OF OPPOSITE CONDUCTIVITY TYPE HAVING A FIRST CONCENTRATION OF UNBALANCED CHEMICAL CHARGES FORMING A JUNCTION THEREWITH, A RECESS FORMED IN ONE REGION OF THE DEVICE IN THE CENTRAL PORTION THEREOF AND EXTENDING THROUGH THE REGION OF OPPOSITE CONDUCTIVITY TYPE INTO SAID BODY, SAID RECESS BEING SURROUNDED ON ALL SIDES BY SAID REGION OF OPPOSITE CONDUCTIVTY TYPE, A RELATIVELY THIN REGION OF SAID OPPOSITE CONDUCTIVITY TYPE HAVING A HIGHER CONCENTRATION OF UNBALANCED CHEMICAL CHARGES THAN SAID FIRST CONCENTRATION MERGING AT ITS EDGE WITH THE REGION OF OPPOSITE CONDUCTIVITY TYPE WHEREBY THE THIN REGION PLAYS THE PREDOMINANT ROLE IN ESTABLISHING THE REVERSE BREAKDOWN VOLTAGE CHARCTERISTICS OF DEVICE.
Claim 2
Dependent Claim
120 words
A SEMICONDUCTOR DEVICE COMPRISING A BODY OF ONE CONDUCTIVITY TYPE AND AT LEAST ONE REGION OF OPPOSITE CONDUCTIVITY TYPE HAVING A FIRST CONCENTRATION OF UNBALANCED CHEMICAL CHARGES FORMING A JUNCTION THEREWITH, A RECESS FORMED IN ONE REGION OF THE DEVICE IN THE CENTRAL PORTION THEREOF AND EXTENDING THROUGH THE REGION OF OPPOSITE CONDUCTIVITY TYPE INTO SAID BODY, SAID RECESS BEING SURROUNDED ON ALL SIDES BY SAID REGION OF OPPOSITE CONDUCTIVTY TYPE, A RELATIVELY THIN REGION OF SAID OPPOSITE CONDUCTIVITY TYPE HAVING A HIGHER CONCENTRATION OF UNBALANCED CHEMICAL CHARGES THAN SAID FIRST CONCENTRATION MERGING AT ITS EDGE WITH THE REGION OF OPPOSITE CONDUCTIVITY TYPE WHEREBY THE THIN REGION PLAYS THE PREDOMINANT ROLE IN ESTABLISHING THE REVERSE BREAKDOWN VOLTAGE CHARCTERISTICS OF DEVICE.
References Cited (Backward Citations)
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US2967985A
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US3007090A
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US2938130A
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US3099591A
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US2937114A
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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) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |