GB1150697A - Apparatus and Method for Melting a Rod of Crystalline Material Zone-by-Zone - Google Patents

Apparatus and Method for Melting a Rod of Crystalline Material Zone-by-Zone

Info

Publication number
GB1150697A
GB1150697A GB17349/68A GB1734968A GB1150697A GB 1150697 A GB1150697 A GB 1150697A GB 17349/68 A GB17349/68 A GB 17349/68A GB 1734968 A GB1734968 A GB 1734968A GB 1150697 A GB1150697 A GB 1150697A
Authority
GB
United Kingdom
Prior art keywords
rod
zone
coil
melting
tapered portion
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
GB17349/68A
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
Original Assignee
Siemens AG
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 AG filed Critical Siemens AG
Publication of GB1150697A publication Critical patent/GB1150697A/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
    • 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
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T117/00—Single-crystal, oriented-crystal, and epitaxy growth processes; non-coating apparatus therefor
    • Y10T117/10—Apparatus
    • Y10T117/1024—Apparatus for crystallization from liquid or supercritical state
    • Y10T117/1076—Apparatus for crystallization from liquid or supercritical state having means for producing a moving solid-liquid-solid zone
    • Y10T117/1088—Apparatus for crystallization from liquid or supercritical state having means for producing a moving solid-liquid-solid zone including heating or cooling details

Abstract

1,150,697. Zone-melting. SIEMENS A.G. 10 April, 1968 [21 April, 1967], No. 17349/68. Heading B1S A molten zone is formed between a thin seed and a tapered portion of a thick rod of silicon and passed through the rod by means of a surroundings induction coil, the coil being increased in diameter as it passes through the tapered portion of the rod. The rod may have a diameter of 30-50 mm. The cross-sectional area of the seed may be up to one-tenth that of the rod. The coil may be of berylliumcopper alloy. As shown, the ends of a coil 1, which is in the form of an alpha, are connected in insulated manner to arms 6a and 6b of rigid members 4, which are pivoted at 5 and have free end 8a and 8b, which are pressed apart by the tapered portion of a screw-threaded pin 9 against the action of a spring 13.
GB17349/68A 1967-04-21 1968-04-10 Apparatus and Method for Melting a Rod of Crystalline Material Zone-by-Zone Expired GB1150697A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES0109450 1967-04-21

Publications (1)

Publication Number Publication Date
GB1150697A true GB1150697A (en) 1969-04-30

Family

ID=7529524

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17349/68A Expired GB1150697A (en) 1967-04-21 1968-04-10 Apparatus and Method for Melting a Rod of Crystalline Material Zone-by-Zone

Country Status (6)

Country Link
US (1) US3607138A (en)
BE (1) BE713935A (en)
DE (1) DE1644004A1 (en)
DK (1) DK120125B (en)
GB (1) GB1150697A (en)
NL (1) NL6805560A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0292919A1 (en) * 1987-05-25 1988-11-30 Shin-Etsu Handotai Company Limited Semiconductor rod zone melting apparatus

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE791284A (en) * 1972-11-13 1973-05-14 Elphiac Sa SYSTEM FOR ADJUSTING THE POSITION OF AN INDUCTOR.
GB1522955A (en) * 1974-12-03 1978-08-31 Rolls Royce Induction heating apparatus
DE2538854B2 (en) * 1975-09-01 1979-02-15 Wacker-Chemitronic Gesellschaft Fuer Elektronik-Grundstoffe Mbh, 8263 Burghausen Single-turn induction heating coil for crucible-free zone melting
US4522790A (en) * 1982-03-25 1985-06-11 Olin Corporation Flux concentrator
US4561489A (en) * 1982-03-25 1985-12-31 Olin Corporation Flux concentrator
JPS6448391A (en) * 1987-04-27 1989-02-22 Shinetsu Handotai Kk Single winding induction heating coil used in floating zone melting method
EP0292920B1 (en) * 1987-05-25 1992-07-29 Shin-Etsu Handotai Company Limited Rf induction heating apparatus
DE69112463T2 (en) * 1990-03-30 1996-02-15 Shinetsu Handotai Kk Device for the production of monocrystals according to the Czochralski process.
EP2997584B1 (en) 2013-05-14 2018-01-03 Thermatool Corp. Induction coil with dynamically variable coil geometry

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB650184A (en) * 1948-05-24 1951-02-14 Gen Electric Co Ltd Improvements in or relating to electric inductor constructions for use in high frequency electric induction heating
US2905798A (en) * 1958-09-15 1959-09-22 Lindberg Eng Co Induction heating apparatus
US3101165A (en) * 1960-05-13 1963-08-20 Atlas Crankshaft Corp Method and apparatus for heat-treating
US3331938A (en) * 1965-03-02 1967-07-18 Ohio Crankshaft Co Conductor with an adjustable workpiece centering arrangement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0292919A1 (en) * 1987-05-25 1988-11-30 Shin-Etsu Handotai Company Limited Semiconductor rod zone melting apparatus

Also Published As

Publication number Publication date
BE713935A (en) 1968-10-21
DK120125B (en) 1971-04-13
NL6805560A (en) 1968-10-22
US3607138A (en) 1971-09-21
DE1644004A1 (en) 1970-04-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees