Patent ID: 6431950
Filing Date: 2002-08-13
Classification: B24B,G01F

Abstract:
A system for regulating the flow of a planarization fluid, comprising:a fluid supply dispenser adapted to contain the planarization fluid; a fluid regulating device adapted to receive an input stream of the planarization fluid from the fluid supply dispenser and to release an output stream of the fluid to a semiconductor wafer planarization machine and having an internal volume capable of accumulating a volume of fluid, the fluid regulating device further including a fluid sensing system adapted to sense fluid motion and fluid accumulation within the regulating device and a fluid command system adapted to control the flow of fluid from the regulating device; and a control system coupled to the fluid sensing system and the fluid command system which is configured to receive control inputs from the fluid sensing system and transmit control outputs to the fluid command system to automatically and continuously control the delivery of planarization fluid to a semiconductor wafer planarization machine.