When wafer load and unload ;robot arm hit or scrape wafer not only check robot arm position;
It always have very high percentage comes from Cassette or FOUP damage.Nikon C-4540 provide you
high accurancy to check your Cassette reliability reduce wafers risk
Overview
•"Available for FOUP, FOSB, 6"",8"" open cassette,Reticle cassette "
•Non-contact dimension measurements by Video measuring and Laser AF
•enables to measure the carrier from 4 direction (Front/Rear/Right/Left)