Patent ID: 6451124
Filing Date: 2002-09-17
Classification: H01L,Y10S

Abstract:
A process for the chemical treatment of semiconductor wafers comprising the sequential steps of:a) providing a treatment bath consisting of an aqueous HF solution; b) providing semiconductor wafers in said treatment bath; c) treating said semiconductor wafers with said aqueous HF solution in said treatment bath; d) separating said semiconductor wafers, after said treatment with said aqueous HF solution, from said aqueous HF solution at a speed of from 0.01 to 0.5 mm/sec so that there is no longer any of said aqueous HF solution on surfaces of said semiconductor wafers; and e) treating said semiconductor wafers with a medium containing ozone, wherein the semiconductor wafers that are treated with said medium containing ozone are free of said aqueous HF solution.