GB758028A - Improvements in or relating to the processing of silicon - Google Patents
Improvements in or relating to the processing of siliconInfo
- Publication number
- GB758028A GB758028A GB176554A GB176554A GB758028A GB 758028 A GB758028 A GB 758028A GB 176554 A GB176554 A GB 176554A GB 176554 A GB176554 A GB 176554A GB 758028 A GB758028 A GB 758028A
- Authority
- GB
- United Kingdom
- Prior art keywords
- silicon
- crucible
- heating
- finely divided
- atmosphere
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/02—Silicon
Abstract
In the production of an ingot of silicon, powdered silicon is melted in a crucible of which at least that part in contact with the silicon is of silicon nitride. The crucible may be moulded from finely divided silicon nitride produced by heating finely divided silicon to a temperature just below its melting point in an atmosphere of nitrogen. Alternatively the crucible may be produced by coating the interior of another refractory material, e.g. graphite, with a layer of finely divided silicon and then converting the silicon to silicon nitride. Heating may be effected in a silicon tube surrounded by a high frequency heating coil in an atmosphere of argon. The silicon may be directionally freezed by moving the crucible along the tube out of the heating zone.ALSO:A graphite crucible may be lined with silicon nitride by coating the interior of the crucible with a layer of finely divided silicon and heating in an atmosphere of nitrogen to a temperature just below the melting point of silicon.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB176554A GB758028A (en) | 1954-01-20 | 1954-01-20 | Improvements in or relating to the processing of silicon |
| FR1117910D FR1117910A (en) | 1954-01-20 | 1955-01-17 | Silicon treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB176554A GB758028A (en) | 1954-01-20 | 1954-01-20 | Improvements in or relating to the processing of silicon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB758028A true GB758028A (en) | 1956-09-26 |
Family
ID=9727595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB176554A Expired GB758028A (en) | 1954-01-20 | 1954-01-20 | Improvements in or relating to the processing of silicon |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1117910A (en) |
| GB (1) | GB758028A (en) |
-
1954
- 1954-01-20 GB GB176554A patent/GB758028A/en not_active Expired
-
1955
- 1955-01-17 FR FR1117910D patent/FR1117910A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1117910A (en) | 1956-05-29 |
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