Method of reducing the effect of noise in determining the...

Optics: measuring and testing – By polarized light examination – Of surface reflection

Reexamination Certificate

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Reexamination Certificate

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10794204

ABSTRACT:
A method of reducing the effect of systematic and/or random noise during determination of dependent variable values, (eg. pseudo “n” and “k” and/or ellipsometric PSI and DELTA or mathematical equivalent vs. wavelength or angle of incidence), involving selecting a mathematical function and an independent variable subset range combination so that a square error best fit with total summed square error over the independent variable subset range being minimized, zero or within an acceptable range near zero, are achieved.

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