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The NanoSpec 6100 thin film thickness measurement system utilizes non-contact spectroscopic reflectometry
to measure sites as small as 25 µm in diameter on
reflecting substrates. The tool measures film
thicknesses in the range of 200 Å – 20 µm with the
visible light source and 25 Å – 20 µm with the UV
light source. Substrates up to 200 mm in diameter
can be measured on the system. It uses a
computerized sample stage and an auto focus system
to rapidly generate 2D and 3D film thickness
uniformity maps and statistics. These features are very useful for optimizing the uniformity of thin film deposition and etch processes. The tool is also capable of measuring multiple layers if the optical constants of the materials are known.
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