US3671703A - Device for crucible-free, floating zone melting a crystalline - Google Patents

Device for crucible-free, floating zone melting a crystalline Download PDF

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Publication number
US3671703A
US3671703A US23366A US3671703DA US3671703A US 3671703 A US3671703 A US 3671703A US 23366 A US23366 A US 23366A US 3671703D A US3671703D A US 3671703DA US 3671703 A US3671703 A US 3671703A
Authority
US
United States
Prior art keywords
tubes
vessel
conductor
current supply
conductors
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 - Lifetime
Application number
US23366A
Other languages
English (en)
Inventor
Wolfgang Keller
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens Corp
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 Siemens Corp filed Critical Siemens Corp
Application granted granted Critical
Publication of US3671703A publication Critical patent/US3671703A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/22—Furnaces without an endless core
    • H05B6/32—Arrangements for simultaneous levitation and heating
    • 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
    • C30B13/20—Heating of the molten zone by induction, e.g. hot wire technique
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D11/00—Arrangement of elements for electric heating in or on furnaces

Definitions

  • the intermediate spaces between the conductor tubes 1, 2 and 3 can contain a gas or can be evacuated. Advantageously it is filled with insulating material, however.
  • the vessel of a device for crucible-free zone-melting wherein the upper end of the current supply is provided with the induction heating coil 13, is evacuated or filled with protective gas such as a noble gas, it is advantageous for the intermediate spaces between the conductor tubes 1 to 3 to be filled with insulating material which has a Shore hardness in the range of l to I00 and an extensibility of at least 20 percent, and when a gas-tight adhesive connection is provided between the insulating material and the surface of the conductor tubes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Induction Heating (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Liquid Deposition Of Substances Of Which Semiconductor Devices Are Composed (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
US23366A 1969-03-29 1970-03-27 Device for crucible-free, floating zone melting a crystalline Expired - Lifetime US3671703A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1916317A DE1916317C3 (de) 1969-03-29 1969-03-29 Stromzuführung für eine Induktionsspule beim tiegelfreien Zonenschmelzen

Publications (1)

Publication Number Publication Date
US3671703A true US3671703A (en) 1972-06-20

Family

ID=5729803

Family Applications (1)

Application Number Title Priority Date Filing Date
US23366A Expired - Lifetime US3671703A (en) 1969-03-29 1970-03-27 Device for crucible-free, floating zone melting a crystalline

Country Status (8)

Country Link
US (1) US3671703A (en, 2012)
JP (1) JPS4811441B1 (en, 2012)
CH (1) CH540716A (en, 2012)
DE (1) DE1916317C3 (en, 2012)
FR (1) FR2035990A1 (en, 2012)
GB (1) GB1257284A (en, 2012)
NL (1) NL7003483A (en, 2012)
SE (1) SE352218B (en, 2012)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3769484A (en) * 1971-08-17 1973-10-30 Siemens Ag Apparatus and method for floating-zone melting of a semiconductor rod
US3862348A (en) * 1972-11-21 1975-01-21 Siemens Ag Apparatus for crucible-free zone melting
US3892938A (en) * 1972-11-13 1975-07-01 Elphiac Sa System for adjusting the position of a coil
US6150644A (en) * 1997-09-25 2000-11-21 Siemens Ag Method of curing winding coils of electrical machines

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0420666D0 (en) * 2004-09-17 2004-10-20 Smiths Group Plc Electrical connectors

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1610980A (en) * 1924-07-22 1926-12-14 Silberman Salman Electrical condenser
US2788426A (en) * 1952-09-03 1957-04-09 Plastic Containers Inc Method and apparatus for treating materials
US2904663A (en) * 1957-11-15 1959-09-15 Siemens Ag Apparatus for zone melting of semiconductor material
US3397291A (en) * 1966-12-15 1968-08-13 Amsted Ind Inc Retaining rib and pin for third rail contact shoe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1610980A (en) * 1924-07-22 1926-12-14 Silberman Salman Electrical condenser
US2788426A (en) * 1952-09-03 1957-04-09 Plastic Containers Inc Method and apparatus for treating materials
US2904663A (en) * 1957-11-15 1959-09-15 Siemens Ag Apparatus for zone melting of semiconductor material
US3397291A (en) * 1966-12-15 1968-08-13 Amsted Ind Inc Retaining rib and pin for third rail contact shoe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
German Published Application, Nov. 15, 1957, 1 sheet drawing, 3 pages specifications, Emlis & Hans, No. 1,076,623. *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3769484A (en) * 1971-08-17 1973-10-30 Siemens Ag Apparatus and method for floating-zone melting of a semiconductor rod
US3892938A (en) * 1972-11-13 1975-07-01 Elphiac Sa System for adjusting the position of a coil
US3862348A (en) * 1972-11-21 1975-01-21 Siemens Ag Apparatus for crucible-free zone melting
US6150644A (en) * 1997-09-25 2000-11-21 Siemens Ag Method of curing winding coils of electrical machines

Also Published As

Publication number Publication date
NL7003483A (en, 2012) 1970-10-01
GB1257284A (en, 2012) 1971-12-15
DE1916317A1 (de) 1970-10-15
CH540716A (de) 1973-08-31
DE1916317B2 (de) 1974-12-12
JPS4811441B1 (en, 2012) 1973-04-13
SE352218B (en, 2012) 1972-12-18
DE1916317C3 (de) 1975-07-24
FR2035990A1 (en, 2012) 1970-12-24

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