(19)
(11) EP 1 307 896 A2

(12)

(88) Date of publication A3:
20.06.2002

(43) Date of publication:
07.05.2003 Bulletin 2003/19

(21) Application number: 01964028.3

(22) Date of filing: 13.08.2001
(51) International Patent Classification (IPC)7H01J 37/32
(86) International application number:
PCT/US0125/505
(87) International publication number:
WO 0201/5650 (21.02.2002 Gazette 2002/08)
(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: 11.08.2000 US 638075
11.08.2000 US 636435
11.08.2000 US 637174
11.08.2000 US 636436
11.08.2000 US 636434
11.08.2000 US 636699
11.08.2000 US 636700

(71) Applicant: Applied Materials, Inc.
Santa Clara,California 95052 (US)

(72) Inventors:
  • HANAWA, Hiroji
    Sunnyvale, CA 94086 (US)
  • YE, Yan
    Campbell, CA 95008 (US)
  • COLLINS, Kenneth, S.
    San Jose, CA 95120 (US)
  • RAMASWAMY, Kartik
    Santa Clara, CA 95051 (US)
  • NGUYEN, Andrew
    San Jose, CA 95132 (US)
  • TANAKA, Tsutomu
    Santa Clara, CA 95051 (US)

(74) Representative: Zimmermann, Gerd Heinrich et al
Zimmermann & Partner,P.O. Box 33 09 20
80069 München
80069 München (DE)

   


(54) EXTERNALLY EXCITED TORROIDAL PLASMA SOURCE