Silicon ingot diameter measurement

Optimizing wafer yield from a valuable and fragile silicon ingot is not an easy task. Step one is accurately sizing an irregular and glossy object. Choose an OD Precision distance sensor, set in differential/mirror mode. Surface variations don’t require time consuming recalibration.

  • Following product families can be used
    • Numerous measuring ranges from 24 mm ... 26 mm to 300 mm ... 700 mm
    • CMOS receiving element for measurement independent of surface
    • Maximum measurement accuracy and frequency
    • Glass thickness measurement with just one sensor head
    • Various light spot sizes
    • Integrated calculations for up to three sensors
    • Stand-alone use via RS-422