Patent ID: 6682607
Filing Date: 2004-01-27
Classification: B08B,G03F,H01L,Y10S

Abstract:
A method for reconditioning a surface of a semiconductor substrate to remove an unwanted layer of photoresist therefrom during semiconductor device fabrication, comprising:(a) dissolving the layer of photoresist by rotating the semiconductor substrate and contacting the layer of photoresist on the surface of the rotating substrate with a stream of a first solvent comprising acetone, with the first solvent and the dissolved photoresist further being urged off the surface of the substrate by the rotation thereof; (b) cleaning the surface of the substrate and removing any of the remaining first solvent or dissolved photoresist from the surface of the substrate by contacting the surface of the substrate with a stream of a second solvent comprising methanol while the substrate is being rotated at a rotation speed that is less than the rotation speed during the step of dissolving the layer of photoresist; and (c) drying the substrate and removing any of the remaining second solvent from the surface of the substrate by rotating the substrate for a time after the streams of the first and second solvents have been shut off.