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contaminant

Hitachi S-4700 FE-SEM

FESEM update

September 19, 2018. The engineers think there is some contamination on a stationary aperture in the column. It will be a big job to change it and it couldn’t be done before next week at the earliest, more likely the week after. I found that the scope works fine at …

Contaminated Sputter Coater

February 27, 2012. The sputter coating system is contaminated and the coatings are of poor quality.  Please don’t use it until I get it cleaned up.  I’ll post a follow-up message to let you know when it is ready. Why is the coater becoming contaminated?  It happens when wet samples …