Patent ID: 6336845
Filing Date: 2002-01-08
Classification: B24B,H01L

Abstract:
A method for uniformly planarizing and cleaning a surface of at least one semiconductor wafer, the method comprising:providing a semiconductor wafer and a semiconductor wafer polishing system; transporting the semiconductor wafer to one of a plurality of wafer receiving areas in a wafer conveyor and transporting the semiconductor wafer to a first primary polishing station; removing the semiconductor wafer from the wafer conveyor and performing a first polishing procedure to partially planarize the surface of the semiconductor wafer; transferring the semiconductor wafer back to the wafer conveyor and transporting the semiconductor wafer on the wafer conveyor to a second polishing station; and removing the semiconductor wafer from the wafer conveyor and performing a second polishing procedure to complete planarization of the semiconductor wafer.