US3246172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Four-layer semiconductor switch with means to provide recombination centers
Assignee: Individual
•
Filing: 1963-03-26
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Granted: 1966-04-12
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Expires: 1983-03-26
Abstract
No abstract record available.
Inventors
- 👤 Richard J Sanford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:18
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/72; H10; H10D; H10D62/00; H10D62/10; H10D62/17; H10D62/192; H10D62/206; H10D62/80; H10D62/83; H10D62/834; Y; Y10; Y10S; Y10S148/00; Y10S148/062
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A SEMICONDUCTOR SWITCH COMPRISING A FIRST SEMICONDUCTOR BODY HAVING A FIRST P TYPE REGION, A FIRST N TYPE REGION, A SECOND P TYPE REGION, A SECOND N TYPE REGION, A SECOND SEMICONDUCTOR BODY HAVING AN N TYPE REGION, SAID SECOND SEMICONDUCTOR BODY CONNECTED TO SAID SECOND P TYPE REGION OF SAID FIRST SEMICONDUCTOR BODY WITH A RECTIFYING JUNCTION THEREBETWEEN, MEANS FOR FORMING A RECOMBINATION CENTERS BETWEEN SAID RECTIFYING JUNCTION AND SAID FIRST N TYPE REGION TO PREVENT CURRENT FLOW THEREBETWEEN WHEN A SIGNAL OF INSUFFICIENT DURATION AND MAGNITUDE IS APPLIED TO SAID SECOND SEMICONDUCTOR BODY.
Claim 2
Dependent Claim
95 words
A SEMICONDUCTOR SWITCH COMPRISING A FIRST SEMICONDUCTOR BODY HAVING A FIRST P TYPE REGION, A FIRST N TYPE REGION, A SECOND P TYPE REGION, A SECOND N TYPE REGION, A SECOND SEMICONDUCTOR BODY HAVING AN N TYPE REGION, SAID SECOND SEMICONDUCTOR BODY CONNECTED TO SAID SECOND P TYPE REGION OF SAID FIRST SEMICONDUCTOR BODY WITH A RECTIFYING JUNCTION THEREBETWEEN, MEANS FOR FORMING A RECOMBINATION CENTERS BETWEEN SAID RECTIFYING JUNCTION AND SAID FIRST N TYPE REGION TO PREVENT CURRENT FLOW THEREBETWEEN WHEN A SIGNAL OF INSUFFICIENT DURATION AND MAGNITUDE IS APPLIED TO SAID SECOND SEMICONDUCTOR BODY.
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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |