The concentration of AI on silicon surface is reduced to lose its influence on the growth rate of an oxide film during thermal oxidation when semiconductor surface treatment is carried out by a process for treating semiconductor surfaces which comprises a step of cleaning surfaces of semiconductors with a semiconductor surface treating agent comprising an inorganic or organic alkali, hydrogen peroxide and water as major components, and a step of rinsing the resulting surfaces with ultra-pure water, at least one of the semiconductor surface treating agent and the ultra-pure water containing as a complexing agent a compound having three or more
groups in the molecule or a salt thereof.
                            半导体表面处理工艺包括:用半导体表面处理剂清洗半导体表面的步骤,半导体表面处理剂的主要成分是无机或有机碱、
过氧化氢和
水;用超纯
水冲洗所得表面的步骤,半导体表面处理剂和超纯
水中至少有一种含有分子中含有三个或三个以上基团的化合物或其盐作为络合剂。
分子中含有三个或三个以上基团的化合物或其盐。