GB1081600A - A method of melting a rod of crystalline material zone-by-zone - Google Patents

A method of melting a rod of crystalline material zone-by-zone

Info

Publication number
GB1081600A
GB1081600A GB31122/66A GB3112266A GB1081600A GB 1081600 A GB1081600 A GB 1081600A GB 31122/66 A GB31122/66 A GB 31122/66A GB 3112266 A GB3112266 A GB 3112266A GB 1081600 A GB1081600 A GB 1081600A
Authority
GB
United Kingdom
Prior art keywords
rod
zone
thin
thick
melting
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
GB31122/66A
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 Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
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 Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Publication of GB1081600A publication Critical patent/GB1081600A/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
    • C30B13/28—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
    • 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
    • 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
    • C30B13/32—Mechanisms for moving either the charge or the heater
    • 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
    • C30B15/00—Single-crystal growth by pulling from a melt, e.g. Czochralski method
    • C30B15/08—Downward pulling
    • 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
    • Y10S117/00—Single-crystal, oriented-crystal, and epitaxy growth processes; non-coating apparatus therefor
    • Y10S117/901—Levitation, reduced gravity, microgravity, space
    • 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
    • Y10S117/00—Single-crystal, oriented-crystal, and epitaxy growth processes; non-coating apparatus therefor
    • Y10S117/91—Downward pulling
    • 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
    • Y10S117/00—Single-crystal, oriented-crystal, and epitaxy growth processes; non-coating apparatus therefor
    • Y10S117/911—Seed or rod holders
    • 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
    • Y10S117/00—Single-crystal, oriented-crystal, and epitaxy growth processes; non-coating apparatus therefor
    • Y10S117/912—Replenishing liquid precursor, other than a moving zone
    • 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
    • Y10S117/00—Single-crystal, oriented-crystal, and epitaxy growth processes; non-coating apparatus therefor
    • Y10S117/917—Magnetic
    • 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
    • Y10T117/1032—Seed pulling
    • Y10T117/1072—Seed pulling including details of means providing product movement [e.g., shaft guides, servo means]

Abstract

In the zone-melting of a thick silicon rod fused to a thin seed rod (or having a corresponding thin rod portion formed by lapping, sand-blasting or etching) while rotating the thin rod and using an induction coil which has a diameter between that of the thin and thick rods, the thin rod is shifted laterally relatively to the coil and thick rod during passage of the molten zone from the thin to thick rod so as to produce a narrow neck between offset supply and recrystallized portions of the thick rod and the offset relationship is maintained during subsequent zone-melting. The thick rod may also be rotated. The molten zone may be passed upwards or downwards. The induction coil may have a frequency of 500 kc/sec to 4 mc/sec. Pre- and afterheating may be employed.
GB31122/66A 1964-02-01 1966-07-11 A method of melting a rod of crystalline material zone-by-zone Expired GB1081600A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DES89317A DE1218404B (en) 1964-02-01 1964-02-01 Method for crucible-free zone melting of a crystalline rod, in particular a semiconductor rod
NL656506040A NL138766B (en) 1964-02-01 1965-05-12 METHOD OF ENLARGING THE CROSS SECTION OF A MONOCRYSTALLINE ROD-SHAPED BODY USING CRISCHLESS ZONE MELTING.
DES98115A DE1275032B (en) 1964-02-01 1965-07-10 Method for crucible-free zone melting of a crystalline rod, in particular a semiconductor rod
DES98712A DE1263698B (en) 1964-02-01 1965-08-07 Process for crucible-free zone melting

Publications (1)

Publication Number Publication Date
GB1081600A true GB1081600A (en) 1967-08-31

Family

ID=27437570

Family Applications (3)

Application Number Title Priority Date Filing Date
GB3442/65A Expired GB1044592A (en) 1964-02-01 1965-01-26 A method of melting a rod of crystalline material zone by zone
GB30903/66A Expired GB1079870A (en) 1964-02-01 1966-07-08 A method of melting a rod of crystalline material zone-by-zone
GB31122/66A Expired GB1081600A (en) 1964-02-01 1966-07-11 A method of melting a rod of crystalline material zone-by-zone

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB3442/65A Expired GB1044592A (en) 1964-02-01 1965-01-26 A method of melting a rod of crystalline material zone by zone
GB30903/66A Expired GB1079870A (en) 1964-02-01 1966-07-08 A method of melting a rod of crystalline material zone-by-zone

Country Status (9)

Country Link
US (3) US3477811A (en)
BE (3) BE664435A (en)
CH (3) CH413785A (en)
DE (3) DE1218404B (en)
DK (2) DK124458B (en)
FR (1) FR1444259A (en)
GB (3) GB1044592A (en)
NL (3) NL138766B (en)
SE (3) SE309965B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1272886B (en) * 1966-09-24 1968-07-18 Siemens Ag Device for crucible-free zone melting of a crystalline rod, in particular a semiconductor rod
DE1544301A1 (en) * 1966-09-28 1970-05-27 Siemens Ag Method for crucible-free zone melting of a crystalline rod, in particular a semiconductor rod
DE1619996A1 (en) * 1967-03-18 1971-07-08 Siemens Ag Method for producing a single-crystal rod, in particular from semiconductor material
US3607109A (en) * 1968-01-09 1971-09-21 Emil R Capita Method and means of producing a large diameter single-crystal rod from a polycrystal bar
DE1960088C3 (en) * 1969-11-29 1974-07-25 Siemens Ag, 1000 Berlin Und 8000 Muenchen Device for crucible-free zone melting of a crystalline rod
DE2234512C3 (en) * 1972-07-13 1979-04-19 Siemens Ag, 1000 Berlin Und 8000 Muenchen Process for the production of (reoriented semiconductor single crystal rods with a specific resistance thawing towards the center of the rod
US4002523A (en) * 1973-09-12 1977-01-11 Texas Instruments Incorporated Dislocation-free growth of silicon semiconductor crystals with <110> orientation
US5156211A (en) * 1991-06-10 1992-10-20 Impact Selector, Inc. Remotely adjustable fishing jar and method for using same

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
NL126240C (en) * 1958-02-19
US3036892A (en) * 1958-03-05 1962-05-29 Siemens Ag Production of hyper-pure monocrystal-line rods in continuous operation
US3036812A (en) * 1958-11-19 1962-05-29 Dewrance & Co Butterfly valves
AT223659B (en) * 1960-11-25 1962-10-10 Siemens Ag Process for the production of dislocation-free single crystal silicon by crucible-free zone melting

Also Published As

Publication number Publication date
DK124458B (en) 1972-10-23
CH442245A (en) 1967-08-31
DK124459B (en) 1972-10-23
BE685153A (en) 1967-02-06
NL6605968A (en) 1967-01-11
BE683852A (en) 1967-01-09
GB1044592A (en) 1966-10-05
FR1444259A (en) 1966-07-01
NL138766B (en) 1973-05-15
US3477811A (en) 1969-11-11
SE323655B (en) 1970-05-11
US3658598A (en) 1972-04-25
US3414388A (en) 1968-12-03
DE1275032B (en) 1968-08-14
NL146402B (en) 1975-07-15
SE309965B (en) 1969-04-14
NL6607827A (en) 1967-02-08
DE1218404B (en) 1966-06-08
DE1263698B (en) 1968-03-21
BE664435A (en) 1965-11-25
GB1079870A (en) 1967-08-16
NL6506040A (en) 1966-11-14
CH413785A (en) 1966-05-31
SE323654B (en) 1970-05-11
CH442246A (en) 1967-08-31

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