High Resolution Investigation of the Rod-Shaped Scattering from a (111) Si Surface by a Synchrotron Radiation Source

Abstract
By using a high resolution X-ray spectrometer in conjunction with a synchrotron radiation source, the rod-shaped scattering due to crystal truncation (RSCT), which is elongated along the normal of a crystal surface through a Bragg point, was investigated for two (111) silicon wafers of which the surfaces were differently processed. It is shown that the characterization of a crystal surface, on the basis of surface roughness on an atomic scale and the misorientation of mosaic blocks, is really possible by the precise measurement of the RSCT.