US3200009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing hyperpure silicon
Assignee: Siemens Schuckertwerke AG
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Filing: 1962-01-10
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Granted: 1965-08-10
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Expires: 1982-01-10
Abstract
No abstract record available.
Inventors
- 👤 Reuschel Konrad
- 👤 Kersting Arno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:51
CPC Classifications
C; C23; C23C; C23C16/00; C01; C01B; C01B32/00; C01B32/90; C01B32/914; C01B32/956; C01B32/963; C01B32/977; C01B33/00; C01B33/02; C01B33/021; C01B33/027; C01B33/035; C22; C22B; C22B41/00; C23C16/22; C23C16/44; C23C16/46; C23C8/00; C30; C30B; C30B25/00; C30B25/02; C30B25/14; H; H10; H10P; H10P95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A PROCESS FOR PRODUCING A SILICON BODY BY REACTION OF A GASEOUS MIXTURE OF HYDROGEN AND A GASEOUS COMPOUND OF SILICON IN A REACTION CHAMBER, COMPRISING HEATING A SILICON CORE BOYD OF APPROXIMATELY THE SAME PURITY AS THE SILICON TO BE PRECIPITATED TO GLOWING TEMPERATURE, THE HEATED BODY EFFECTING THE REACTION, INTRODUCING SAID GASEOUS MIXTURE, AT A VELOCITY OF AT LEAST 100 M./SEC. AND BELOW 200 M./SEC. INTO THE REACTION CHAMBER TO PRODUCE A HIGH DEGREE OF TURBULENCE WHEREBY THE GAS MIXTURE FLOWS LONGITUDINALLY ALONG SAID CORE BODY TO EFFECT EFFICIENT REACTION INTO SILICON AND UNIFORMLY THICKEN SAID CORE BODY.
Claim 2
Dependent Claim
100 words
A PROCESS FOR PRODUCING A SILICON BODY BY REACTION OF A GASEOUS MIXTURE OF HYDROGEN AND A GASEOUS COMPOUND OF SILICON IN A REACTION CHAMBER, COMPRISING HEATING A SILICON CORE BOYD OF APPROXIMATELY THE SAME PURITY AS THE SILICON TO BE PRECIPITATED TO GLOWING TEMPERATURE, THE HEATED BODY EFFECTING THE REACTION, INTRODUCING SAID GASEOUS MIXTURE, AT A VELOCITY OF AT LEAST 100 M./SEC. AND BELOW 200 M./SEC. INTO THE REACTION CHAMBER TO PRODUCE A HIGH DEGREE OF TURBULENCE WHEREBY THE GAS MIXTURE FLOWS LONGITUDINALLY ALONG SAID CORE BODY TO EFFECT EFFICIENT REACTION INTO SILICON AND UNIFORMLY THICKEN SAID CORE BODY.
References Cited (Backward Citations)
US2854318A
Cited
US2925357A
Cited
US3042494A
Cited
US3011877A
Cited
US2931709A
Cited
US3058812A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |