Patent ID: 7205078

Claim:
A method for generating a backscattering intensity with which charged particles are backscattered to a resist layer when a charged particle beam is irradiated onto the resist layer which is formed over a plurality of layers, each of which includes a pattern of one substance or a plurality of substances, wherein, with respect to the n th layer from the resist layer among the plurality of layers, there is provided, for each of the substances contained, in the n th layer, a reflection coefficient (rn), which corresponds with the number of particles reflected by the n th layer among the charged particles transmitted by the (n−1) th layer; a transmission coefficient (tn), which corresponds with the number of particles transmitted by the n th layer among the charged particles reaching the n th layer; and a scatter distribution in which the charged particles are scattered within the n th layer; the generation method comprising: a first step of generating the backscattering intensity by using the reflection coefficient (rn), the transmission coefficient (tn), and the scatter distribution.