Patent ID: 6059891
Filing Date: 2000-05-09
Classification: B08B,H01L,Y10S

Abstract:
An apparatus for washing a substrate, comprising:a spin chuck for holding and rotating a substrate to be washed;washing means for supplying a washing liquid onto a surface of the substrate held on the spin chuck and applying a physical force to contaminants present on a surface of the substrate so as to remove said contaminants;a supporting arm for supporting the washing means;an arm driving mechanism for driving the supporting arm to move the washing means along the surface from a central portion toward a peripheral portion of the substrate; andcontrol means for controlling the operation of at least one of the washing means, the spin chuck and the arm driving mechanism so as to control the physical force acting on the contaminants present on the surface of the substrate depending on a detected distribution of contaminants on the surface of the substrate.