Patent ID: 6920200

Claim:
A density-nonuniform multilayer analyzing method comprising the step of, by using a scattering function representing an X-ray scattering curve according to a fitting parameter indicating a state of distribution of particulate matter, calculating a simulated X-ray scattering curve under the same conditions as those under which an actually measured X-ray scattering curve is measured, and the step of performing fitting between the simulated X-ray scattering curve and the actually measured X-ray scattering curve while the fitting parameter is being changed, the values of the fitting parameters that have been used when the simulated X-ray scattering curve and the actually measured X-ray scattering curve have coincided with each other being regarded as representing the state of distribution of the particulate matter in the density-nonuniform multilayer film, to thereby analyze the state of distribution of the particulate matter within the density-nonuniform multilayer film, wherein as the scattering function, there is used a function into which there has been introduced the transition probability wherein the exact solutions of the multilayer film are set to be an initial state and a final state.