Abstract: The present invention generally provides a system and apparatus for cleaning a polishing pad, such as a fixed abrasive pad, in a substrate processing system. In one embodiment, the system includes one or more nozzles which spray a fluid at pressures of about 30 psi to about 300 psi or greater, as measured at the nozzle, onto a polishing pad at acute angles to the surface of the polishing pad. The nozzles can spray downward and outward toward the perimeter of the pad to facilitate the debris removal therefrom. The system can include a pressure source to produce a sufficient fluid pressure substantially higher than the typical fluid pressure available from a facility installation.
Type:
Application
Filed:
February 24, 2000
Publication date:
July 11, 2002
Applicant:
LI,ET AL
Inventors:
Shijian Li, Ramin Emami, Sen-Hou Ko, Shi-Ping Wang, Fred C. Redeker, Lizhong Sun, Stan Tsai