Patent ID: 6145148
Filing Date: 2000-11-14
Classification: A46B,B08B,H01L,Y10S

Abstract:
A scrubber for performing a chemical mechanical scrubbing process for cleaning of a semiconductor substrate comprising;an input to receive the semiconductor substrate;a brush assembly coupled to the input and comprisinga chemical mechanical semiconductor scrubbing brush having an interior portion and an exterior portion; andan HF solution delivery system coupled to the brush to deliver an HF cleaning solution to the interior portion of the brush for application through the brush to the exterior portion of the brush and the semiconductor substrate;wherein the HE solution delivery system includes,a first supply line to supply a first solution;a second supply line to supply a second solution;a delivery tube coupled to the first and second supply lines; anda device coupled to the delivery tube to control the flow rate of one or both of the first solution and the second solution in the delivery tube.