Patent ID: 7039161
Filing Date: 2006-05-02
Classification: G01N

Abstract:
1. A method for analyzing a film structure, the method comprising: fitting a simulated X-ray scattering curve obtained by simulation calculation to a measured X-ray scattering intensity curve obtained by emitting X-rays onto a surface of a film specimen having a single layer or multi-layer structure at an angle in a vicinity of a critical angle to the surface, by varying at least one parameter characterizing a physical property of the film specimen; and obtaining optimum values of parameters providing a minimum difference between the measured X-ray scattering intensity curve and the simulated X-ray scattering curve, so as to determine the structure of the film specimen, wherein plurality of combinations of incident angle and outgoing angle to the surface of the film specimen are set such that there is no correlation between the incident angle and the outgoing angle, and the measured X-ray scattering intensity curve is obtained by measuring an X-ray intensity for each of the respective combinations of incident angle and outgoing angle.