US3011877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of high-purity semiconductor materials for electrical purposes
Assignee: Siemens Schuckertwerke AG
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Filing: 1957-06-11
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Granted: 1961-12-05
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Expires: 1977-06-11
Abstract
No abstract record available.
Inventors
- 👤 Schweickert Hans
- 👤 Reuschel Konrad
- 👤 Gutsche Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:36
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; C23C16/22; C23C16/44; C23C16/46; C30; C30B; C30B25/00; C30B25/02; C30B25/14; H; H10; H10P; H10P95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
AN APPARATUS FOR PRODUCING SEMICONDUCTOR MATERIAL OF HIGH PURITY ELECTRICAL PURPOSES, COMPRISING A CLOSED VESSEL HAVING INLET AND OUTLET MEANS FOR SUPPLYING A GASEOUS COMPOUND OF SAID SEMICONDUCTOR MATERIAL WHICH PRECIPITATES SEMICONDUCTOR MATERIAL UPON HEATING, A BASE STRUCTURE HAVING ELECTRICALLY CONDUCTIVE AND MUTUALLY INSULATED HOLDING MEANS COMPRISING HOLDERS, A PLURALITY OF ELONGATED CARRIER ROD PORTIONS OF SELF-SUPPORTING STRENGTH AND CONSISTING OF THE SAME SEMICONDUCTOR SUBSTANCE AS THAT TO BE PRECIPITATED, EACH OF SAID ROD PORTIONS HAVING ONLY ONE OF ITS ENDS MOUNTED ON ONE OF SAID HOLDERS RESPECTIVELY, THE OTHER ENDS OF SAID ROD PORTIONS EXTENDING INTO THE INTERIOR OF THE VESSEL AND BEING CONDUCTIVELY CONNECTED WITH EACH OTHER TO FORM TOGETHER A FREE SELFSUPPORTTED INTERIOR CARRIER STRUCTURE, ELECTRIC CURRENT SUPPLY MEANS CONNECTED ACROSS SAID HOLDERS TO HEAT SAID ROD PORTIONS TO A TEMPERATURE BELOW THE MELTING POINT BUT SUFFICIENT TO PRECIPITATE SAID SEMICONDUCTOR MATERIAL ON THE RODS, SAID INLET AND OUTLET MEANS BEING LOCATED ADJACENT THE SAME END REGION OF THE RODS, SO THAT THE GASEOUS COMPOUND REVERSES DIRECTION IN PASSING FROM THE INLET TO THE OUTLET.
Claim 2
Independent Claim
178 words
AN APPARATUS FOR PRODUCING SEMICONDUCTOR MATERIAL OF HIGH PURITY ELECTRICAL PURPOSES, COMPRISING A CLOSED VESSEL HAVING INLET AND OUTLET MEANS FOR SUPPLYING A GASEOUS COMPOUND OF SAID SEMICONDUCTOR MATERIAL WHICH PRECIPITATES SEMICONDUCTOR MATERIAL UPON HEATING, A BASE STRUCTURE HAVING ELECTRICALLY CONDUCTIVE AND MUTUALLY INSULATED HOLDING MEANS COMPRISING HOLDERS, A PLURALITY OF ELONGATED CARRIER ROD PORTIONS OF SELF-SUPPORTING STRENGTH AND CONSISTING OF THE SAME SEMICONDUCTOR SUBSTANCE AS THAT TO BE PRECIPITATED, EACH OF SAID ROD PORTIONS HAVING ONLY ONE OF ITS ENDS MOUNTED ON ONE OF SAID HOLDERS RESPECTIVELY, THE OTHER ENDS OF SAID ROD PORTIONS EXTENDING INTO THE INTERIOR OF THE VESSEL AND BEING CONDUCTIVELY CONNECTED WITH EACH OTHER TO FORM TOGETHER A FREE SELFSUPPORTTED INTERIOR CARRIER STRUCTURE, ELECTRIC CURRENT SUPPLY MEANS CONNECTED ACROSS SAID HOLDERS TO HEAT SAID ROD PORTIONS TO A TEMPERATURE BELOW THE MELTING POINT BUT SUFFICIENT TO PRECIPITATE SAID SEMICONDUCTOR MATERIAL ON THE RODS, SAID INLET AND OUTLET MEANS BEING LOCATED ADJACENT THE SAME END REGION OF THE RODS, SO THAT THE GASEOUS COMPOUND REVERSES DIRECTION IN PASSING FROM THE INLET TO THE OUTLET.
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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) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |