Beyer Law Group LLP
Apparatus with a spectral reflectometer for processing substrates
A spectral reflectometer system for measuring a substrate is provided. A light source is provided. At least one optical detector is provided. An optical cable comprises a plurality of optical fibers, wherein the plurality of optical fibers comprises a first plurality of optical fibers, which are transmission optical fibers which extend from the light source to an optical path, and a second plurality of optical fibers, which are reflection optical fibers which extend from the optical path to the at least one optical detector. A microlens array is in the optical path.
Lam Research Corporation
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Dmitry Seonkyung
Opaits Lee