Polishing methods and apparatus

Abrading – Precision device or process - or with condition responsive... – Controlling temperature

Reexamination Certificate

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C451S288000, C451S053000

Reexamination Certificate

active

11273134

ABSTRACT:
Apparatus for and methods of chemical mechanical polishing (CMP) of semiconductor wafers are disclosed. A preferred embodiment comprises an apparatus for polishing a semiconductor workpiece that includes a polishing pad, a fluid dispenser adapted to dispense a fluid to the polishing pad, and a temperature measurement device adapted to measure the temperature of the fluid. The apparatus includes a heat exchanger adapted to increase or decrease the temperature of the fluid.

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