Patent ID: 7259850

Claim:
A method for obtaining values for optical constants n and k for a layer on a substrate comprising: (a) providing a substrate with an organic or inorganic layer formed thereon; (b) performing a spectral ellipsometer measurement and a broadband spectrometer measurement of said organic or inorganic layer in an integrated optical measurement system; (c) independent of said performing, determining a thickness for said organic or inorganic layer using an independent optical thickness measurement component based on Beam Profile Reflectometry or Beam Profile Ellipsometry; (d) determining said values for said optical constants n and k for said organic or inorganic layer based on said thickness, the spectral ellipsometer measurement, the broadband spectrometer measurement, and modeling information, wherein n represents index of refraction and k represents extraction coefficient; and (e) displaying an experimental data output for said thickness data of said organic or inorganic layer combined with measurement data from said spectral ellipsometer and broadband spectrometer measurements, wherein said experimental data output is fitted to modeling data to provide a best fit of experimental data to modeling data.