Scatter correction in reflectivity measurements

Optics: measuring and testing – Of light reflection

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Details

356326, 356381, 356448, G01N 2155, G01J 328

Patent

active

054520916

ABSTRACT:
The correction for scattered light reflected from a substrate having surface irregularities and the measurement of thin film thickness on that substrate are made using a spectrophotometer system and the Fresnel reflectance equation.

REFERENCES:
patent: 4350442 (1982-09-01), Arild et al.
patent: 4680084 (1987-07-01), Heimann et al.
patent: 4766551 (1988-08-01), Begley
patent: 4899055 (1990-02-01), Adams

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