Patent ID: 9535018
Date: 2017-01-03
CPC Classifications: G01B,G01N,H01L

Claim:
1. A model building and analysis engine comprising: a geometric model building module configured to generate a geometric model of a structure of a specimen; an optical response function building module configured to generate an optical response model of a response of the structure of the specimen to incident optical radiation based at least in part on the geometric model; an x-ray response function building module configured to generate an x-ray response model of a response of the structure of the specimen to incident x-ray radiation based at least in part on the geometric model; an x-ray data analysis module configured to receive a first amount of measurement data indicative of an amount of x-ray radiation detected from the specimen in response to an x-ray illumination beam incident on the specimen and directly determine a first specimen parameter value based on the received measurement data; and a fitting analysis module configured to: