(19)
(11) EP 1 481 413 A2

(12)

(88) Date of publication A3:
27.11.2003

(43) Date of publication:
01.12.2004 Bulletin 2004/49

(21) Application number: 03706715.4

(22) Date of filing: 20.02.2003
(51) International Patent Classification (IPC)7H01J 37/00
(86) International application number:
PCT/GB2003/000733
(87) International publication number:
WO 2003/075305 (12.09.2003 Gazette 2003/37)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR
Designated Extension States:
AL LT LV MK RO

(30) Priority: 06.03.2002 US 91351
30.09.2002 US 259827

(71) Applicant: Applied Materials, Inc.
Santa Clara,California 95054 (US)

(72) Inventors:
  • FARLEY, Marvin
    Ipswich, MA 01938 (US)
  • SAKASE, Takao
    Rowley, MA 01938 (US)
  • SATOH, Shu
    Byfield, MA 01922 (US)
  • RYDING, Geoffrey
    Manchester, MA 01944 (US)
  • ROSE, Peter
    Rockport, MA 01966 (US)
  • CHRISTOU, Christos
    Horsham,West Sussex RH13 5SE (GB)

(74) Representative: Cross, Rupert Edward Blount 
BOULT WADE TENNANT,Verulam Gardens70 Gray's Inn Road
London WC1X 8BT
London WC1X 8BT (GB)

   


(54) INDIRECTLY HEATED BUTTON CATHODE FOR AN ION SOURCE