US3341857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor light source
Assignee: Fairchild Semiconductor Corp
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Filing: 1964-10-26
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Granted: 1967-09-12
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Expires: 1984-10-26
Abstract
No abstract record available.
Inventors
- 👤 Louis J Kabell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:52
CPC Classifications
H; H10; H10D; H10D99/00; H10H; H10H20/00; H10H20/80; H10H29/00; H10H29/10; H10H29/14; H10H29/142
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
IN A SEMICONDUCTOR LIGHT SOURCE, THE COMBINATION COMPRISING A SILICON BODY OF A FIRST CONDICTIVITY TYPE HAVING A SURFACE, A FIRST REGION OF OPPOSITE CONDUCTIVITY TYPE TO SAID BODY FORMED WITHIN SAID BOD AND EXTENDING TO SAID SURFACE, AND A SECOND REGION OF SAID SAME CONDUCTIVITY TYPE AS SAID BODY FORMED WITHIN SAID FIRST REGION AND EXTENDING TO SAID SURFACE, SAID FIRST REGION HAVING A DOPANT CONCENTRATION HIGHEST NEAR SAID SURFACE, WHEREBY A MAXIMUM AMOUNT OF LIGHT IS EMITTED WHEN SAID DEVICE IS OPERATED IN AN AVALANCHE MODE.
Claim 2
Dependent Claim
88 words
IN A SEMICONDUCTOR LIGHT SOURCE, THE COMBINATION COMPRISING A SILICON BODY OF A FIRST CONDICTIVITY TYPE HAVING A SURFACE, A FIRST REGION OF OPPOSITE CONDUCTIVITY TYPE TO SAID BODY FORMED WITHIN SAID BOD AND EXTENDING TO SAID SURFACE, AND A SECOND REGION OF SAID SAME CONDUCTIVITY TYPE AS SAID BODY FORMED WITHIN SAID FIRST REGION AND EXTENDING TO SAID SURFACE, SAID FIRST REGION HAVING A DOPANT CONCENTRATION HIGHEST NEAR SAID SURFACE, WHEREBY A MAXIMUM AMOUNT OF LIGHT IS EMITTED WHEN SAID DEVICE IS OPERATED IN AN AVALANCHE MODE.
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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |