(19)
(11) EP 1 346 086 A2

(12)

(88) Date of publication A3:
16.01.2003

(43) Date of publication:
24.09.2003 Bulletin 2003/39

(21) Application number: 01989767.7

(22) Date of filing: 26.11.2001
(51) International Patent Classification (IPC)7C30B 29/06, C30B 15/00
(86) International application number:
PCT/US0144/180
(87) International publication number:
WO 0204/4446 (06.06.2002 Gazette 2002/23)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

(30) Priority: 30.11.2000 JP 2000364601
08.12.2000 JP 2000374147
07.03.2001 US 273980 P

(71) Applicant: MEMC Electronic Materials, Inc.
St. Peters, Missouri 63376 (US)

(72) Inventors:
  • KOJIMA, Makoto,MEMC Japan Ltd.
    Utsunomiya-city,Tochigi 321-32 (JP)
  • ISHII, Yasuhiro,MEMC Japan, Ltd.
    Utsunomiya-city,Tochigi 321-32 (JP)

(74) Representative: Eyles, Christopher Thomas 
W.P. THOMPSON & CO.55 Drury Lane
London WC2B 5SQ
London WC2B 5SQ (GB)

   


(54) PROCESS FOR CONTROLLING THERMAL HISTORY OF VACANCY-DOMINATED, SINGLE CRYSTAL SILICON