GB762982A - Improvements relating to the melting of silicon - Google Patents
Improvements relating to the melting of siliconInfo
- Publication number
- GB762982A GB762982A GB365654A GB365654A GB762982A GB 762982 A GB762982 A GB 762982A GB 365654 A GB365654 A GB 365654A GB 365654 A GB365654 A GB 365654A GB 762982 A GB762982 A GB 762982A
- Authority
- GB
- United Kingdom
- Prior art keywords
- silicon
- ingot
- induction heating
- pict
- electrodes
- 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
- 229910052710 silicon Inorganic materials 0.000 title abstract 6
- 239000010703 silicon Substances 0.000 title abstract 6
- 230000008018 melting Effects 0.000 title 1
- 238000002844 melting Methods 0.000 title 1
- 238000010438 heat treatment Methods 0.000 abstract 3
- 230000006698 induction Effects 0.000 abstract 3
- 239000013078 crystal Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 239000005388 borosilicate glass Substances 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 239000012212 insulator Substances 0.000 abstract 1
- 239000000696 magnetic material Substances 0.000 abstract 1
- 238000007670 refining Methods 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 abstract 1
- 239000010935 stainless steel Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B13/00—Single-crystal growth by zone-melting; Refining by zone-melting
- C30B13/16—Heating of the molten zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J6/00—Heat treatments such as Calcining; Fusing ; Pyrolysis
- B01J6/005—Fusing
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Silicon Compounds (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
<PICT:0762982/III/1> <PICT:0762982/III/2> In the zone refining of silicon by means of high frequency induction heating, the silicon is preheated, e.g. to 500 DEG C. or above, by passing an electric current through the silicon. When the induction heating becomes effective, the preheating may be terminated or reduced. As shown an ingot of silicon is clamped between two electrodes 2a and 2b which are preferably water cooled and of stainless steel. The electrodes are connected by a bridge 3 and insulator 4 and are movable vertically. Surrounding the ingot is a watercooled induction heating coil 5 and a heat concentrator in the form of a hollow cylinder 7 of magnetic material having an internal flange 8 and radial slit 10 (Fig. 2). The concentrator is preferably water cooled. The ingot is enclosed in a container 11, e.g. of borosilicate glass having an opening for evacuating the container or supplying inert gas thereto. The apparatus may also be used for fusing together two pieces of silicon, especially for fusing a mono-crystal seed to a polycrystalline ingot in order to grow a single crystal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB365654A GB762982A (en) | 1954-02-08 | 1954-02-08 | Improvements relating to the melting of silicon |
| FR1118960D FR1118960A (en) | 1954-02-08 | 1955-02-08 | Improvements in silicon fusion processes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB365654A GB762982A (en) | 1954-02-08 | 1954-02-08 | Improvements relating to the melting of silicon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB762982A true GB762982A (en) | 1956-12-05 |
Family
ID=9762440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB365654A Expired GB762982A (en) | 1954-02-08 | 1954-02-08 | Improvements relating to the melting of silicon |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1118960A (en) |
| GB (1) | GB762982A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3002320A (en) * | 1951-11-16 | 1961-10-03 | Bell Telephone Labor Inc | Preparation of silicon material |
| US3012865A (en) * | 1957-11-25 | 1961-12-12 | Du Pont | Silicon purification process |
| CN114471371A (en) * | 2021-12-23 | 2022-05-13 | 宏雷机械设备(南通)有限公司 | Toluene recovery device |
-
1954
- 1954-02-08 GB GB365654A patent/GB762982A/en not_active Expired
-
1955
- 1955-02-08 FR FR1118960D patent/FR1118960A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3002320A (en) * | 1951-11-16 | 1961-10-03 | Bell Telephone Labor Inc | Preparation of silicon material |
| US3012865A (en) * | 1957-11-25 | 1961-12-12 | Du Pont | Silicon purification process |
| CN114471371A (en) * | 2021-12-23 | 2022-05-13 | 宏雷机械设备(南通)有限公司 | Toluene recovery device |
| CN114471371B (en) * | 2021-12-23 | 2023-10-27 | 宏雷机械设备(南通)有限公司 | Toluene recovery device |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1118960A (en) | 1956-06-13 |
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