Patent ID: 6043162
Filing Date: 2000-03-28
Classification: H01L,Y10S

Abstract:
A method of processing semiconductor wafers in an evacuated reaction chamber having an inner wall, comprising the steps of:etching said semiconductor wafers by introducing a reactive gas into said reaction chamber;restoring the pressure in said reaction chamber to atmospheric pressure by introducing an inert gas into said reaction chamber;cleaning said semiconductor wafers with water and drying said semiconductor wafers with flow of an inert gas while said semiconductor wafer rotates at a predetermined rate of rotation, wherein the inner wall retains water;adjusting the temperature of the inner wall surface in the range of 50.degree. C.-80.degree. C.; and upon completion of drying said semiconductor wafers, drying the inner wall by introducing an alcoholic gas into said reaction chamber, said alcoholic gas having a boiling point at least 10.degree. C. lower than the temperature of the inner wall surface of said reaction chamber, wherein the temperature of the semiconductor wafers is substantially the same as that of the inner wall surface.