| Product Specification |
TAKING CALIBRATION A STEP FORWARD. Step Height Standards (SHS) are designed to calibrate mechanical or optical surface profilers. These standards consist of a 25 mm x 25 mm x 3 mm quartz block with a precisely etched uniform bar along with various test and diagnostic features. The choice of the material for manufacturing the standard-an ultra smooth quartz photomask blank-assures a very flat and smooth working surface as well as parallelism of the top and bottom surface within a few seconds of arc.
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