Correlation between Surface Microroughness of Silicon Oxide Film and SiO2/Si Interface Structure

Abstract
It was found, from combined measurements of the surface microroughness of silicon oxide film and the SiO2/Si interface structure, that the surface microroughness of thermal oxide film formed on a Si(111) surface changes periodically with the progress of oxidation in accordance with periodic changes in interface structures. Therefore, the changes in interface structures can be detected by measuring the oxidation-induced surface microroughness.