GB869461A - Improvements in or relating to apparatus for use in melting a zone of a rod of semi-conductor material - Google Patents

Improvements in or relating to apparatus for use in melting a zone of a rod of semi-conductor material

Info

Publication number
GB869461A
GB869461A GB10360/60A GB1036060A GB869461A GB 869461 A GB869461 A GB 869461A GB 10360/60 A GB10360/60 A GB 10360/60A GB 1036060 A GB1036060 A GB 1036060A GB 869461 A GB869461 A GB 869461A
Authority
GB
United Kingdom
Prior art keywords
coil
rod
zone
semi
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
GB10360/60A
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.)
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 GB869461A publication Critical patent/GB869461A/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

Abstract

869,461. Electric induction zone melting of semi - conductor materials. SIEMENSSCHUCKERTWERKE A.G. March 23, 1960 [May 14, 1959], No. 10360/60. Class 39(3). H.F. induction apparatus for melting a zone 4 of a rod 3 of semi-conductor material such as silicon, by a method in which the molten material is supported by means other than a supporting crucible, includes a heating coil 2 which is movable axially of the rod and has spiral turns disposed substantially in a common plane. This construction produces a more concentrated field, allows easier observation of the molten zone 4, avoids short circuiting of the turns of the coil 2 by evaporated material, reduces the danger of contamination of the rod 3 by particles scaling off from the coil, and allows easier cleaning of the coil as compared with a cylindrical construction. The coil 2 may consist of silver or silvercoated copper tubing. Tubes 11 for the supply of cooling water are soldered to copper current supply bars 10 which are connected to a device (not shown) for axially displacing the coil. The rod 3 and coil 2 may be enclosed in a vacuum chamber.
GB10360/60A 1959-05-14 1960-03-23 Improvements in or relating to apparatus for use in melting a zone of a rod of semi-conductor material Expired GB869461A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DES62993A DE1226984B (en) 1959-05-14 1959-05-14 Device for crucible-free zone melting of semiconductor rods
DES0063624 1959-06-25

Publications (1)

Publication Number Publication Date
GB869461A true GB869461A (en) 1961-05-31

Family

ID=25995694

Family Applications (2)

Application Number Title Priority Date Filing Date
GB10360/60A Expired GB869461A (en) 1959-05-14 1960-03-23 Improvements in or relating to apparatus for use in melting a zone of a rod of semi-conductor material
GB22278/60A Expired GB876467A (en) 1959-05-14 1960-06-24 Improvements in or relating to apparatus for use in melting a zone of a rod of semi-conductor material

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB22278/60A Expired GB876467A (en) 1959-05-14 1960-06-24 Improvements in or relating to apparatus for use in melting a zone of a rod of semi-conductor material

Country Status (4)

Country Link
US (1) US3053918A (en)
CH (2) CH378546A (en)
DE (1) DE1226984B (en)
GB (2) GB869461A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3773499A (en) * 1968-04-03 1973-11-20 M Melnikov Method of zonal melting of materials
DE2158274A1 (en) * 1971-11-24 1973-05-30 Siemens Ag INDUCTION HEATING COIL FOR CRUCIBLE-FREE ZONE MELTING OF BARS MADE OF SEMICONDUCTOR MATERIAL
DE2217407A1 (en) * 1972-04-11 1973-11-29 Siemens Ag INDUCTION HEATING COIL FOR CRUCIBLE-FREE ZONE MELTING
DE2919988A1 (en) * 1979-05-17 1980-11-27 Siemens Ag POWER SUPPLY IN COAXIAL DESIGN

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2686864A (en) * 1951-01-17 1954-08-17 Westinghouse Electric Corp Magnetic levitation and heating of conductive materials
US2664496A (en) * 1952-11-25 1953-12-29 Westinghouse Electric Corp Apparatus for the magnetic levitation and heating of conductive materials
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
US2809905A (en) * 1955-12-20 1957-10-15 Nat Res Dev Melting and refining metals
US2870309A (en) * 1957-06-11 1959-01-20 Emil R Capita Zone purification device

Also Published As

Publication number Publication date
DE1408558B2 (en) 1972-07-06
CH378546A (en) 1964-06-15
GB876467A (en) 1961-09-06
DE1408558A1 (en) 1969-12-11
CH388636A (en) 1965-02-28
US3053918A (en) 1962-09-11
DE1226984B (en) 1966-10-20

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