Patent ID: 7609812
Filing Date: 2009-10-27
Classification: G01N

Abstract:
1. A pore or particle-size distribution measurement method for measuring size distribution of pores or particles existing within a porous insulator film formed on a surface of a substrate, comprising: only irradiating the insulator film with X-rays from the insulator film's surface side at a single incident angle which is set to be larger than a total-reflection critical angle of the insulator film and larger than 1.0 times a total-reflection critical angle of the substrate but less than 1.3 times a total-reflection critical angle of the substrate; and detecting among reflection components reflected on the surface of the substrate of the X-rays which have entered the insulator film, reflection components exiting from the insulator film after entering the pore or particle and scattering, having an exit angle larger than that of reflection components which exit from the insulator film without entering the pore or particle.