Patent ID: 6909772
Filing Date: 2005-06-21
Classification: G01B,G01N

Abstract:
1. A method for determining film thickness of a textured polycrystalline thin film of unknown thickness, comprising the steps of: (a) providing a plurality of sample films of known film thickness; (b) obtaining a corrected and integrated diffraction intensity of a particular set of diffraction planes for each sample film, by calculating complete pole densities of said particular set of diffracting planes based on multiple incomplete pole figures collected from a diffraction image of each sample film, correcting values of diffraction intensities obtained for the particular set of diffraction planes from the diffraction image by using the complete pole densities so calculated, and integrating the corrected values of diffraction intensities; (c) correlating the corrected and integrated diffraction intensities obtained in step (b) with the known film thicknesses of respective sample films; and (d) mapping the film thickness of the textured polycrystalline thin film, based on a corrected and integrated diffraction intensity calculated for said textured polycrystalline thin film, and the correlation between the corrected and integrated diffraction intensities and the film thicknesses as determined in step (c).