GB993880A - Improvements in or relating to methods and apparatus for pulling crystals from a melt - Google Patents
Improvements in or relating to methods and apparatus for pulling crystals from a meltInfo
- Publication number
- GB993880A GB993880A GB4386562A GB4386562A GB993880A GB 993880 A GB993880 A GB 993880A GB 4386562 A GB4386562 A GB 4386562A GB 4386562 A GB4386562 A GB 4386562A GB 993880 A GB993880 A GB 993880A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- pulling
- melt
- nov
- effected
- 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
- 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
- C30B15/00—Single-crystal growth by pulling from a melt, e.g. Czochralski method
- C30B15/30—Mechanisms for rotating or moving either the melt or the crystal
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Liquid Deposition Of Substances Of Which Semiconductor Devices Are Composed (AREA)
Abstract
993,880. Crystal-pulling. PHILLIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Nov. 20, 1962 [Nov. 23, 1961], No. 43865/62. Heading BIS. Crystal-pulling is effected in a closed vitreous quartz tube 1 using a seed 6 attached to the upper end of the tube and a melt 29 heated by an induction coil 22 and contained in a graphite crucible 7 attached to a ferromagnetic body 10 of rectangular cross-section, Fig. 2, and having graphite bearing members 15 and 16, movement of body 10 with respect to tube 1 being effected by means of electromagnetic polepieces 24 outside the tube. Body 10 may be maintained stationary while tube 1 is moved upwards at a speed of 0À5 mm./minute and revolved at 15 rev./minute. Tube 1 may be mounted in a graphite bearing 23 within an outer vitreous quartz tube 19. In the pulling of gallium arsenide, tube 19 may carry resistance heating coils 19 and 20 to provide 1 atmosphere excess pressure of arsenic. The melt of gallium arsenide may be preformed or formed in situ. "Germanium, silicon, or cadmium telluride may alternatively be pulled.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL271764 | 1961-11-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB993880A true GB993880A (en) | 1965-06-02 |
Family
ID=19753430
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4386562A Expired GB993880A (en) | 1961-11-23 | 1962-11-20 | Improvements in or relating to methods and apparatus for pulling crystals from a melt |
Country Status (5)
Country | Link |
---|---|
AT (1) | AT241534B (en) |
BE (1) | BE625139A (en) |
CH (1) | CH433190A (en) |
DE (1) | DE1233826B (en) |
GB (1) | GB993880A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4622211A (en) * | 1979-09-20 | 1986-11-11 | Sony Corporation | Apparatus for solidification with resistance heater and magnets |
US4708764A (en) * | 1984-09-04 | 1987-11-24 | Kernforschungsanlage Julich Gesellschaft Mit Beschrankter Haftung | Method of and apparatus for growing crystals |
US4830703A (en) * | 1984-08-10 | 1989-05-16 | Kabushiki Kaisha Toshiba | Single crystal growth apparatus |
US5009865A (en) * | 1984-09-04 | 1991-04-23 | Kernforschungsanlage Julich Gmbh | Bar and crucible magnetic suspension for a crystal-growing apparatus |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL103523C (en) * | 1955-08-26 |
-
0
- BE BE625139D patent/BE625139A/xx unknown
-
1962
- 1962-11-20 AT AT909462A patent/AT241534B/en active
- 1962-11-20 GB GB4386562A patent/GB993880A/en not_active Expired
- 1962-11-20 DE DE1962N0022379 patent/DE1233826B/en active Pending
- 1962-11-20 CH CH1364762A patent/CH433190A/en unknown
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4622211A (en) * | 1979-09-20 | 1986-11-11 | Sony Corporation | Apparatus for solidification with resistance heater and magnets |
US4830703A (en) * | 1984-08-10 | 1989-05-16 | Kabushiki Kaisha Toshiba | Single crystal growth apparatus |
US4708764A (en) * | 1984-09-04 | 1987-11-24 | Kernforschungsanlage Julich Gesellschaft Mit Beschrankter Haftung | Method of and apparatus for growing crystals |
US4818500A (en) * | 1984-09-04 | 1989-04-04 | Kernforschungsanlage Julich Gesellschaft Mit Beschrankter Haftung | Method of and apparatus for growing crystals |
US5009865A (en) * | 1984-09-04 | 1991-04-23 | Kernforschungsanlage Julich Gmbh | Bar and crucible magnetic suspension for a crystal-growing apparatus |
Also Published As
Publication number | Publication date |
---|---|
AT241534B (en) | 1965-07-26 |
CH433190A (en) | 1967-04-15 |
DE1233826B (en) | 1967-02-09 |
BE625139A (en) |
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