Patent ID: 6528128
Filing Date: 2003-03-04
Classification: B05C,B05D

Abstract:
A substrate-treating method, which comprises the step of:supplying a chemical liquid from a chemical liquid supplier to a substrate to be treated while linearly moving the chemical liquid supplier from one end of the substrate to another end of the substrate, thereby forming a chemical liquid film on a main surface of the substrate, wherein a relative moving speed between the substrate and said chemical liquid supplier is substantially the same with a supplying speed of the chemical liquid being fed from said chemical liquid supplier to the substrate, and a relative speed in the same direction between the chemical liquid being fed from said chemical liquid supplier to the substrate and the substrate is substantially zero, wherein an auxiliary plate is disposed around the substrate with a main surface of said auxiliary plate being positioned at a level approximately the same with that of the main surface of the substrate, and said chemical liquid supplier is moved from the portion of the auxiliary plate disposed on one side of the substrate to the portion of the auxiliary plate disposed on the opposite side of the substrate, thereby initiating the supply of chemical liquid starting from one side of the substrate and subsequently finishing the supply of chemical liquid at the opposite side of the substrate.