WO2003035548A3 - Method for producing high-purity silicon - Google Patents

Method for producing high-purity silicon Download PDF

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Publication number
WO2003035548A3
WO2003035548A3 PCT/EP2002/011519 EP0211519W WO03035548A3 WO 2003035548 A3 WO2003035548 A3 WO 2003035548A3 EP 0211519 W EP0211519 W EP 0211519W WO 03035548 A3 WO03035548 A3 WO 03035548A3
Authority
WO
WIPO (PCT)
Prior art keywords
producing high
purity silicon
silane
silicon
melt
Prior art date
Application number
PCT/EP2002/011519
Other languages
German (de)
French (fr)
Other versions
WO2003035548A2 (en
Inventor
Franz Hugo
Alf Bjoerseth
Bruno Ceccaroli
Jan Maurits
Original Assignee
Silicon Technologies As
Franz Hugo
Alf Bjoerseth
Bruno Ceccaroli
Jan Maurits
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 Silicon Technologies As, Franz Hugo, Alf Bjoerseth, Bruno Ceccaroli, Jan Maurits filed Critical Silicon Technologies As
Priority to AU2002350543A priority Critical patent/AU2002350543A1/en
Publication of WO2003035548A2 publication Critical patent/WO2003035548A2/en
Publication of WO2003035548A3 publication Critical patent/WO2003035548A3/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/02—Silicon
    • C01B33/021—Preparation
    • C01B33/027—Preparation by decomposition or reduction of gaseous or vaporised silicon compounds other than silica or silica-containing material
    • C01B33/029—Preparation by decomposition or reduction of gaseous or vaporised silicon compounds other than silica or silica-containing material by decomposition of monosilane
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/02—Silicon
    • C01B33/021—Preparation
    • C01B33/027—Preparation by decomposition or reduction of gaseous or vaporised silicon compounds other than silica or silica-containing material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Silicon Compounds (AREA)

Abstract

The invention relates to a method for producing high-purity silicon, especially for photovoltaic purposes and preferably for using in the production of wafers, according to which silane is thermally decomposed in order to obtain silicon. The inventive method is characterised in that gaseous silane is injected into a silicon melt and, following the injection of the silane, the melt is cast and solidified.
PCT/EP2002/011519 2001-10-19 2002-10-15 Method for producing high-purity silicon WO2003035548A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002350543A AU2002350543A1 (en) 2001-10-19 2002-10-15 Method for producing high-purity silicon

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10151159.0 2001-10-19
DE2001151159 DE10151159A1 (en) 2001-10-19 2001-10-19 Process for the production of high-purity silicon

Publications (2)

Publication Number Publication Date
WO2003035548A2 WO2003035548A2 (en) 2003-05-01
WO2003035548A3 true WO2003035548A3 (en) 2004-03-11

Family

ID=7702744

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/011519 WO2003035548A2 (en) 2001-10-19 2002-10-15 Method for producing high-purity silicon

Country Status (3)

Country Link
AU (1) AU2002350543A1 (en)
DE (1) DE10151159A1 (en)
WO (1) WO2003035548A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006094714A1 (en) 2005-03-05 2006-09-14 Joint Solar Silicon Gmbh & Co. Kg Reactor and method for producing silicon
WO2012152920A1 (en) * 2011-05-11 2012-11-15 Institutt For Energiteknikk Gas distribution arrangement for a fluidized bed

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1572479A (en) * 1976-08-12 1980-07-30 Wacker Chemitronic Manufacture of elemental semiconductor material
DE2938670A1 (en) * 1979-09-25 1981-04-02 Justice Neal Santa Ana Calif. Carman METHOD AND DEVICE FOR PRODUCING AND POURING LIQUID SILICON
US4737348A (en) * 1982-06-22 1988-04-12 Harry Levin Apparatus for making molten silicon

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1572479A (en) * 1976-08-12 1980-07-30 Wacker Chemitronic Manufacture of elemental semiconductor material
DE2938670A1 (en) * 1979-09-25 1981-04-02 Justice Neal Santa Ana Calif. Carman METHOD AND DEVICE FOR PRODUCING AND POURING LIQUID SILICON
US4737348A (en) * 1982-06-22 1988-04-12 Harry Levin Apparatus for making molten silicon

Also Published As

Publication number Publication date
WO2003035548A2 (en) 2003-05-01
AU2002350543A1 (en) 2003-05-06
DE10151159A1 (en) 2003-04-30

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