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ISO 23131:2021 Ellipsometry - Principles
standard by International Organization for Standardization, 05/01/2021
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This document specifies a method for determining optical and dielectric constants in the UV-VIS-NIR spectral range as well as layer thicknesses in the field of at-line production control, quality assurance and material development through accredited test laboratories.
It is applicable to stand-alone measuring systems. The presentation of the uncertainty of results conforms to ISO/IECGuide98-3.