(19)
(11) EP 1 361 933 A1

(12)

(43) Date of publication:
19.11.2003 Bulletin 2003/47

(21) Application number: 02700615.4

(22) Date of filing: 20.02.2002
(51) International Patent Classification (IPC)7B24B 37/04, B24B 53/007
(86) International application number:
PCT/JP0201/456
(87) International publication number:
WO 0206/6207 (29.08.2002 Gazette 2002/35)
(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: 20.02.2001 JP 2001043777

(71) Applicant: EBARA CORPORATION
Ohta-ku,Tokyo 144-8510 (JP)

(72) Inventors:
  • HIROKAWA, Kazuto;c/o Ebara Corporation
    Tokyo 144-8510 (JP)
  • KODERA, Akira;c/o Ebara Research Co., Ltd.
    Fujisawa-shi,Kanagawa 251-8502 (JP)
  • HIYAMA, Hirokuni;c/o Ebara Research Co., Ltd.
    Fujisawa-shi,Kanagawa 251-8502 (JP)

(74) Representative: Wagner, Karl H., Dipl.-Ing. 
WAGNER & GEYERPatentanwälteGewürzmühlstrasse 5
80538 München
80538 München (DE)

   


(54) POLISHING APPARATUS AND DRESSING METHOD