Patent ID: 6682777
Filing Date: 2004-01-27
Classification: B05C,B05D,H01L

Abstract:
A method for processing a substrate for removing an unnecessary portion of a coating film formed on a substrate, comprising the steps:(A) adsorbing and holding the substrate by a plurality of adsorption sites each being arranged along a corresponding peripheral side edge of an upper surface of a table; (B) sucking and discharging a coating film dissolved in a solvent simultaneously with supplying the solvent to each of the substrate peripheral edge portions from a corresponding solvent nozzle while moving a plurality of solvent nozzles along the corresponding peripheral edge portions of the substrate; and (C) switching an operation of each of the adsorption sites between an adsorption maintaining operation and an adsorption canceling operation or changing timing of switching the adsorption maintaining operation from an adsorption maintaining operation of a preceding group of adsorption sites to that of a subsequent group of adsorption sites, at the same time as said step (B) is carried out, the preceding group of adsorption sites and the subsequent group of adsorption sites being included in the adsorption sites.