BE609017A - Improvements in purification by the melted zone process - Google Patents

Improvements in purification by the melted zone process

Info

Publication number
BE609017A
BE609017A BE609017A BE609017A BE609017A BE 609017 A BE609017 A BE 609017A BE 609017 A BE609017 A BE 609017A BE 609017 A BE609017 A BE 609017A BE 609017 A BE609017 A BE 609017A
Authority
BE
Belgium
Prior art keywords
purification
zone process
melted zone
melted
zone
Prior art date
Application number
BE609017A
Other languages
French (fr)
Inventor
Robert Reich
Original Assignee
Centre Nat Rech Scient
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 Centre Nat Rech Scient filed Critical Centre Nat Rech Scient
Publication of BE609017A publication Critical patent/BE609017A/en

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
    • C30B13/28—Controlling or regulating
    • C30B13/30—Stabilisation or shape controlling of the molten zone, e.g. by concentrators, by electromagnetic fields; Controlling the section of the crystal
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
    • G05D23/193—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces
    • G05D23/1931—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of one space
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/22—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element being a thermocouple
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S148/00—Metal treatment
    • Y10S148/074—Horizontal melt solidification

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electromagnetism (AREA)
  • Remote Sensing (AREA)
  • Control Of Resistance Heating (AREA)
  • Manufacture And Refinement Of Metals (AREA)
BE609017A 1960-10-14 1961-10-11 Improvements in purification by the melted zone process BE609017A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR841136A FR1281269A (en) 1960-10-14 1960-10-14 Improvements to devices for purifying various materials by the molten zone process

Publications (1)

Publication Number Publication Date
BE609017A true BE609017A (en) 1962-02-01

Family

ID=8740752

Family Applications (1)

Application Number Title Priority Date Filing Date
BE609017A BE609017A (en) 1960-10-14 1961-10-11 Improvements in purification by the melted zone process

Country Status (4)

Country Link
US (1) US3154623A (en)
BE (1) BE609017A (en)
FR (1) FR1281269A (en)
GB (1) GB962010A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4473433A (en) * 1982-06-18 1984-09-25 At&T Bell Laboratories Process for producing dielectrically isolated single crystal silicon devices

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2691732A (en) * 1948-12-07 1954-10-12 Westinghouse Electric Corp Radio frequency generator
US2972525A (en) * 1953-02-26 1961-02-21 Siemens Ag Crucible-free zone melting method and apparatus for producing and processing a rod-shaped body of crystalline substance, particularly semiconductor substance
US2792317A (en) * 1954-01-28 1957-05-14 Westinghouse Electric Corp Method of producing multiple p-n junctions
US2743199A (en) * 1955-03-30 1956-04-24 Westinghouse Electric Corp Process of zone refining an elongated body of metal
US2870309A (en) * 1957-06-11 1959-01-20 Emil R Capita Zone purification device
US2992311A (en) * 1960-09-28 1961-07-11 Siemens Ag Method and apparatus for floatingzone melting of semiconductor rods

Also Published As

Publication number Publication date
FR1281269A (en) 1962-01-12
GB962010A (en) 1964-06-24
US3154623A (en) 1964-10-27

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