FR2379316A1 - Coil for zone refining appts. for semiconductors - consisting of two half turns supplied separately to avoid arcing - Google Patents

Coil for zone refining appts. for semiconductors - consisting of two half turns supplied separately to avoid arcing

Info

Publication number
FR2379316A1
FR2379316A1 FR7739114A FR7739114A FR2379316A1 FR 2379316 A1 FR2379316 A1 FR 2379316A1 FR 7739114 A FR7739114 A FR 7739114A FR 7739114 A FR7739114 A FR 7739114A FR 2379316 A1 FR2379316 A1 FR 2379316A1
Authority
FR
France
Prior art keywords
coil
appts
semiconductors
zone refining
supplied separately
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.)
Withdrawn
Application number
FR7739114A
Other languages
French (fr)
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.)
Monsanto Co
Original Assignee
Monsanto Co
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 Monsanto Co filed Critical Monsanto Co
Publication of FR2379316A1 publication Critical patent/FR2379316A1/en
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • H05B6/36—Coil arrangements
    • H05B6/362—Coil arrangements with flat coil conductors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (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)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • General Induction Heating (AREA)

Abstract

Coil for a zone refining appts. for semiconductor rods, is in two parts consisting of matching flaf coil without electrical contact between them. Each half has entry and exit leads for electrical supply and water cooling arranged opposite each other; so that H.F. 180 degrees out of phase can be applied to the opposite half coils. Each half coil is a single half turn with the leads at the ends of the half turn. The coils are fed from two resonating circuits and H.F. amplifiers opt. via H.F. transformers. Each half turn has a circular configuration which is the specular replica of the other. The half turns consist of tubes carrying cooling water. Each is connected to earth at its central point.
FR7739114A 1976-12-27 1977-12-23 Coil for zone refining appts. for semiconductors - consisting of two half turns supplied separately to avoid arcing Withdrawn FR2379316A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75415676A 1976-12-27 1976-12-27

Publications (1)

Publication Number Publication Date
FR2379316A1 true FR2379316A1 (en) 1978-09-01

Family

ID=25033670

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7739114A Withdrawn FR2379316A1 (en) 1976-12-27 1977-12-23 Coil for zone refining appts. for semiconductors - consisting of two half turns supplied separately to avoid arcing

Country Status (5)

Country Link
JP (1) JPS5382603A (en)
BE (1) BE862260A (en)
DE (1) DE2757868A1 (en)
DK (1) DK578077A (en)
FR (1) FR2379316A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5331864A (en) * 1992-10-16 1994-07-26 Chi Yi Chen Bicycle headset

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014226419A1 (en) * 2014-12-18 2016-06-23 Siltronic Ag A method of growing a single crystal by crystallizing the single crystal from a flow zone

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR957277A (en) * 1950-02-17
FR959490A (en) * 1950-03-30
BE736197A (en) * 1965-08-31 1970-01-19 Acec HIGH FREQUENCY HEATING INDUCER
FR2039037A5 (en) * 1969-03-19 1971-01-08 Siemens Ag

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR957277A (en) * 1950-02-17
FR959490A (en) * 1950-03-30
BE736197A (en) * 1965-08-31 1970-01-19 Acec HIGH FREQUENCY HEATING INDUCER
FR2039037A5 (en) * 1969-03-19 1971-01-08 Siemens Ag

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5331864A (en) * 1992-10-16 1994-07-26 Chi Yi Chen Bicycle headset

Also Published As

Publication number Publication date
BE862260A (en) 1978-06-23
DK578077A (en) 1978-06-28
JPS5382603A (en) 1978-07-21
DE2757868A1 (en) 1978-07-06

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Legal Events

Date Code Title Description
ST Notification of lapse