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Due to its IR-SLD light source and a specially modified optical setup,
the FRT CWL HR delivers the highest lateral resolution and the smallest
measuring spot of all CWL sensors. It works by the principle of
chromatic aberration. This non-destructive method works equally reliable
on surfaces with high and low reflectivity. The CWL HR is used for the
characterization of structure sizes in the lateral micrometer and
vertical sub-micrometer range. Typical applications are found in the
semiconductor, MEMS and nanotechnology industries.
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