Patent ID: 6782072
Filing Date: 2004-08-24
Classification: G01N

Abstract:
A method of analyzing a composition depth profile of a solid surface layer, wherein actually-measured intensity of photoelectrons emitted from said solid surface layer by irradiating said solid surface layer containing at least two or more species of element with X rays and photoelectron calculated intensity obtained by making a calculation assuming an elemental composition ratio for each of a plurality of sub-layers into which said solid surface layer has been temporarily divided are utilized to determine a composition depth profile of said solid surface layer, the method comprising a step of at least repeating an approximate calculation including:distinguishing a specified sub-layer such that the calculated intensity best converges to the actually-measured intensity in said sub-layers; and correcting an elemental composition ratio at least for said specified sub-layer so that the calculated intensity converges to the actually-measured intensities, thereby determining the composition depth profile of said solid surface layer.