US3565590A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for producing trichlorosilane
Assignee: Texas Instruments Inc
•
Filing: 1968-07-11
•
Granted: 1971-02-23
•
Expires: 1988-07-11
Abstract
Abstract TRICHLOROSILANE IS PRODUCED IN A REACTOR PACKED WITH A POROUS MASS OF SINTERED SILICON PARTICLES. A FURNACE SURROUNDING THE UPPER END OF THE REACTION CHAMBER MELTS THE TOP PORTION OF THE POROUS MASS TO FORM A POOL OF MOLTEN SILICON. BY FLOWING SILICON TETRACHLORIDE THROUGH THE POROUS MASS, A REACTION TAKES PLACE WITHIN THE REACTOR WHEN THE SICL4 CONTACTS THE MOLTEN SILICON. THIS REACTION PRODUCES SILICON DICHLORIDE. TO PRODUCE TRICHLOROSILANE, THE SILICON DICHLORIDE IS REACTED WITH HCL DOWNSTREAM OF THE REACTOR OUTPUT. D R A W I N G
Inventors
- 👤 Ronald C Bracken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:48
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/04; B; B01; B01J; B01J10/00; B01J10/005; C01B33/08; C01B33/107
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |