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 melt

Info

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
Application number
GB4386562A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB993880A publication Critical patent/GB993880A/en
Expired legal-status Critical Current

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.
GB4386562A 1961-11-23 1962-11-20 Improvements in or relating to methods and apparatus for pulling crystals from a melt Expired GB993880A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL103523C (en) * 1955-08-26

Cited By (5)

* Cited by examiner, † Cited by third party
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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