GB1445861A - Process for the manufacture of silicon mouldings - Google Patents
Process for the manufacture of silicon mouldingsInfo
- Publication number
- GB1445861A GB1445861A GB4143973A GB4143973A GB1445861A GB 1445861 A GB1445861 A GB 1445861A GB 4143973 A GB4143973 A GB 4143973A GB 4143973 A GB4143973 A GB 4143973A GB 1445861 A GB1445861 A GB 1445861A
- Authority
- GB
- United Kingdom
- Prior art keywords
- silicon
- mould
- graphite
- sintered
- sept
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ceramic Products (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
1445861 Casting silicon WACKER-CHEMITRONIC GES FUR ELEKTRONIKGRUNDSTOFFE mbH 4 Sept 1973 [8 Sept 1972] 41439/73 Heading B5A A process for the manufacture of silicon mouldings comprises casting a silicon melt into a mould having a moulding surface consisting of one or more substances selected from graphite, sintered quartz wool, sintered quartz sand, and sintered silicon nitride, either in vacuo or under an inert gas atmosphere, the temperature of the mould being such that when the silicon melt contacts the moulding surface a solid layer of silicon immediately forms thereon. In the apparatus shown, a hollow silicon article is produced in a two part mould comprising a convex part 5 of graphite having a surface 7 of silicon nitride and a concave part 6 of graphite having a surface layer of sintered quartz wool or sand. The silicon is melted in a quartz crucible 1 before being poured into the mould via a funnel 3.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2244211A DE2244211C3 (en) | 1972-09-08 | 1972-09-08 | Process for the production of shaped bodies from silicon |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1445861A true GB1445861A (en) | 1976-08-11 |
Family
ID=5855844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4143973A Expired GB1445861A (en) | 1972-09-08 | 1973-09-04 | Process for the manufacture of silicon mouldings |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS4967823A (en) |
DE (1) | DE2244211C3 (en) |
FR (1) | FR2198802B1 (en) |
GB (1) | GB1445861A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2178420A (en) * | 1982-12-27 | 1987-02-11 | Stanford Res Inst Int | Apparatus for the production of single or quasi single crystal ingots of silicon |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2646299C2 (en) * | 1976-10-14 | 1982-09-02 | Wacker-Chemitronic Gesellschaft für Elektronik-Grundstoffe mbH, 8263 Burghausen | Process for the production of rotationally symmetrical silicon moldings |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1301121A (en) * | 1961-08-29 | 1962-08-10 | Schunk & Ebe Gmbh | Containers for the manufacture or processing of semiconductors |
FR1444693A (en) * | 1963-12-14 | 1966-07-08 | Siemens Ag | Crucible for drawing crystals, and more particularly semiconductor crystals, from a material in the molten state |
DE2009459A1 (en) * | 1970-02-28 | 1971-09-09 | Consortium Elektrochem Ind | Process for the production of Sihciumformkorpern |
-
1972
- 1972-09-08 DE DE2244211A patent/DE2244211C3/en not_active Expired
-
1973
- 1973-09-04 GB GB4143973A patent/GB1445861A/en not_active Expired
- 1973-09-06 JP JP48100714A patent/JPS4967823A/ja active Pending
- 1973-09-07 FR FR7332332A patent/FR2198802B1/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2178420A (en) * | 1982-12-27 | 1987-02-11 | Stanford Res Inst Int | Apparatus for the production of single or quasi single crystal ingots of silicon |
US4753783A (en) * | 1982-12-27 | 1988-06-28 | Sri International | Process and apparatus for obtaining silicon from fluosilicic acid |
Also Published As
Publication number | Publication date |
---|---|
FR2198802A1 (en) | 1974-04-05 |
DE2244211C3 (en) | 1975-07-24 |
DE2244211B2 (en) | 1975-03-20 |
DE2244211A1 (en) | 1974-03-28 |
JPS4967823A (en) | 1974-07-01 |
FR2198802B1 (en) | 1976-11-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |