(19)
(11) EP 1 204 986 A1

(12)

(43) Date of publication:
15.05.2002 Bulletin 2002/20

(21) Application number: 00949793.4

(22) Date of filing: 03.08.2000
(51) International Patent Classification (IPC)7H01J 37/32
(86) International application number:
PCT/GB0003/003
(87) International publication number:
WO 0111/659 (15.02.2001 Gazette 2001/07)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

(30) Priority: 06.08.1999 US 369528

(71) Applicant: Axcelis Technologies, Inc.
Beverly, MA 01915 (US)

(72) Inventors:
  • KELLERMAN, Peter, Lawrence
    Essex, MA 01929 (US)
  • STEJIC, George
    Franklin, WI 53132 (US)

(74) Representative: Burke, Steven David et al
R.G.C. Jenkins & Co.26 Caxton Street
London SW1H 0RH
London SW1H 0RH (GB)

   


(54) SYSTEM AND METHOD FOR PROVIDING IMPLANT DOSE UNIFORMITY ACROSS THE SURFACE OF A SUBSTRATE