Patent ID: 6021806
Filing Date: 2000-02-08
Classification: B24B,Y10T

Abstract:
A slurry distribution system for supplying slurry to CMP equipment, comprising:a tank for storing the slurry;a movable supply line inserted through an opening in a top of said tank, said movable supply line being supported for vertical movement in said opening, said movable supply line having a first open end located inside said tank, and a second end located outside said tank and opposite to said first open end;flexible connecting means connecting said second end of said movable supply line to a fixed main supply line which is connected to said CMP equipment, said flexible connecting means allowing said movable supply line to move vertically relative to said fixed main supply line and said tank; andposition-controlling means controlling vertical movement of said movable supply line in accordance with rise and fall of a top surface of the slurry in the tank, such that said first open end of said movable supply line remains below the top surface of the slurry by a predetermined distance.