(19)
(11) EP 1 269 520 A2

(12)

(88) Date of publication A3:
21.02.2002

(43) Date of publication:
02.01.2003 Bulletin 2003/01

(21) Application number: 01916604.0

(22) Date of filing: 13.03.2001
(51) International Patent Classification (IPC)7H01L 21/00, H01L 21/205
(86) International application number:
PCT/US0107/976
(87) International publication number:
WO 0106/9659 (20.09.2001 Gazette 2001/38)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 14.03.2000 US 189630 P
23.08.2000 US 644875

(71) Applicant: Cree Lighting Company
Goleta, CA 93117 (US)

(72) Inventors:
  • KAPOLNEK, David
    Santa Barbara, CA 93105 (US)
  • THIBEAULT, Brian
    Santa Barbara, CA 93101 (US)

(74) Representative: Butcher, Ian James et al
A.A. Thornton & Co.235 High Holborn
London WC1V 7LE
London WC1V 7LE (GB)

   


(54) FABRICATION OF SEMICONDUCTOR MATERIALS AND DEVICES WITH CONTROLLED ELECTRICAL CONDUCTIVITY