GB915732A - Zone refining apparatus - Google Patents

Zone refining apparatus

Info

Publication number
GB915732A
GB915732A GB14353/60A GB1435360A GB915732A GB 915732 A GB915732 A GB 915732A GB 14353/60 A GB14353/60 A GB 14353/60A GB 1435360 A GB1435360 A GB 1435360A GB 915732 A GB915732 A GB 915732A
Authority
GB
United Kingdom
Prior art keywords
boat
melted
seed crystal
pict
iii
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
GB14353/60A
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB915732A publication Critical patent/GB915732A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
    • D02G1/0266—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting false-twisting machines
    • 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
    • C30B13/22—Heating of the molten zone by irradiation or electric discharge
    • C30B13/24—Heating of the molten zone by irradiation or electric discharge using electromagnetic waves
    • 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
    • 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
    • Y10T117/108—Including a solid member other than seed or product contacting the liquid [e.g., crucible, immersed heating element]
    • 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

<PICT:0915732/III/1> <PICT:0915732/III/2> <PICT:0915732/III/3> Zone melting apparatus comprises means for moving an elongated body of material slowly past a plurality of heat sources whereby portions of the material are melted by each source in turn and allowed to solidify in passing between adjacent heat sources, and includes means to permit the portions of the body of material to be melted but to prevent a seed crystal at one end of the body from being melted. In one embodiment a boat 3 (Fig. 1) containing material 7d, e.g. germanium, is slowly pulled by a rod 8 through a tube 1 around which are inductive heating coils 6a, 6b and 6c which produce molten zones 7a, 7b and 7c which pass along the material in boat 3. The boat 3 has an inductive coupling shell 2 (see also Fig. 2), e.g. of graphite, which enables the coils to heat the material and so form the molten zones. One end of the boat contains a seed crystal 7g in contact with the material, and the shell 2 stops short of this end of the boat so that the seed crystal is not melted. In another embodiment (Fig. 3) a tube 8 (e.g. of quartz) containing a boat 9 in which is placed material 1A, is moved relatively to sources of radiant heat 4A, 4B and 4C, so that molten zones 1Da, 1Db and 1Dc are formed and pass along the material. Tube 8 has a shield 5, e.g. of aluminium foil, which prevents a seed crystal 1C from being melted.
GB14353/60A 1959-04-30 1960-04-25 Zone refining apparatus Expired GB915732A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US809957A US3020132A (en) 1959-04-30 1959-04-30 Single crystal refining

Publications (1)

Publication Number Publication Date
GB915732A true GB915732A (en) 1963-01-16

Family

ID=25202590

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14353/60A Expired GB915732A (en) 1959-04-30 1960-04-25 Zone refining apparatus

Country Status (4)

Country Link
US (1) US3020132A (en)
DE (2) DE1150357B (en)
GB (1) GB915732A (en)
NL (2) NL250835A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4828445A (en) * 1982-06-14 1989-05-09 Giannuzzi Louis Single-piece pre-shaped wall anchor

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3250842A (en) * 1963-01-15 1966-05-10 Atomic Energy Commission Electron beam zone refining
DE1644006A1 (en) * 1967-04-29 1970-04-02 Siemens Ag Device for crucible-free zone melting of a crystalline rod, in particular a semiconductor rod
US3485613A (en) * 1967-11-06 1969-12-23 Corning Glass Works Method of producing a vitreous body by crucibleless fluid zone treatment
US3651386A (en) * 1970-08-24 1972-03-21 Universal Oil Prod Co Pyropolymeric semiconducting organic-refractory oxide material
USRE28635E (en) * 1970-08-24 1975-12-02 Pyropolymeric semiconducting organic-refractory oxide material
JPS535867B2 (en) * 1973-03-08 1978-03-02
US3926566A (en) * 1973-05-18 1975-12-16 Bicron Corp Processing alkali metal halide salts for growing into crystals in accordance with stockbarger process
US3884642A (en) * 1973-07-23 1975-05-20 Applied Materials Inc Radiantly heated crystal growing furnace

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL168491B (en) * 1951-11-16 Roussel-Uclaf, Societe Anonyme Te Parijs.
NL89230C (en) * 1952-12-17 1900-01-01
AT194444B (en) * 1953-02-26 1958-01-10 Siemens Ag Method and device for treating an elongated semiconductor crystal arrangement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4828445A (en) * 1982-06-14 1989-05-09 Giannuzzi Louis Single-piece pre-shaped wall anchor
US4963062A (en) * 1982-06-14 1990-10-16 Giannuzzi Louis Single-piece, pre-shaped anchor

Also Published As

Publication number Publication date
DE1150357B (en) 1963-06-20
NL112210C (en)
DE1243145B (en) 1967-06-29
NL250835A (en)
US3020132A (en) 1962-02-06

Similar Documents

Publication Publication Date Title
GB915732A (en) Zone refining apparatus
GB904100A (en) A process for zone-by-zone melting of a rod of semi-conductor material using an induction coil as the heating means and an automatic arrangement for controlling the current through the coil
GB915120A (en) Improvements in or relating to methods of making rod-like bodies by drawing from a melt
GB939102A (en) Improvements in and relating to the production of crystals, and apparatus for use therein
GB973754A (en) Improvements in or relating to moving-zone heat treatment of materials
GB1284068A (en) Improvements in or relating to the drawing of crystalline bodies
GB876467A (en) Improvements in or relating to apparatus for use in melting a zone of a rod of semi-conductor material
GB1045664A (en) A process for melting a rod of polycrystalline material zone-by-zone
ES259417A1 (en) Apparatus for melting glass with charging means
GB1145769A (en) Improvements in or relating to apparatus for the heat treatment of electrically conductive materials
GB1065187A (en) A method of producing a rod of semi-conductor material
GB1031560A (en) Improvements in or relating to the production of monocrystalline semiconductor material
SE7905726L (en) PROCEDURE AND DEVICE FOR HEATING A NON-IRON MATERIAL WITH LIQUID FUEL
BE591713A (en) Process for zone drawing without crucible
GB1102389A (en) Process and apparatus for melting and solidifying refractory materials
GB1104596A (en) A method of sulphidizing molten lead
GB948217A (en) A process for the production of sulphur-containing gold
GB1097806A (en) Method and apparatus for crucible-free zone melting
FR1186996A (en) Water-cooled melting crucible, especially for high frequency heating
JPS5326705A (en) Apparatus for zone melting of semiconductor rod without crucible
GB1122151A (en) High-frequency electric induction furnace
JPS526309A (en) Temperature zone melting process using no crucible
GB937040A (en) Improvements in methods and apparatus for making glass rods and glass tubes
GB824341A (en) Improvements in and relating to the manufacture of crystals
GB932668A (en) Improvements in or relating to methods of and apparatus for heat treatment of semi-conductor material