Abrading – Precision device or process - or with condition responsive... – Computer controlled
Reexamination Certificate
2005-08-16
2005-08-16
Nguyen, George (Department: 3723)
Abrading
Precision device or process - or with condition responsive...
Computer controlled
C451S008000, C451S009000, C451S010000, C451S041000, C451S066000, C451S067000
Reexamination Certificate
active
06929529
ABSTRACT:
The present invention relates to a polishing apparatus for polishing a workpiece such as a semiconductor wafer. The polishing apparatus has a processing section including a polishing section (1) for polishing a semiconductor wafer (6) and a cleaning section (10) for cleaning a polished semiconductor wafer, a receiving section (40) for supplying a semiconductor wafer (6) to be polished to the processing section and receiving a polished semiconductor wafer (6), and a cleaning chamber (20) disposed between the processing section and the receiving section and defined by partitions (102, 103) with shutters (22, 24) which separate the processing section and the receiving section from each other.
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U.S. Appl. No. 09/358,252 filed Jul. 20, 1999 (pending).
Sekimoto Masahiko
Yoshida Masao
Ebara Corporation
Wenderoth , Lind & Ponack, L.L.P.
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