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Low/Ultra Low Voltage and Pressure Imaging in SEM

This is a past event.

Thursday, February 10, 2022, 2 pm– 3 pm

This is a past event.

Materials Science and Engineering Seminar

Bob Passeri 

Hitachi High-Tech America, Schaumberg, IL


This in-person (and Zoom) seminar will discuss the application and uses of the different electron sources and how those pertain to Low Voltage (<5kV) & Ultra-Low Voltage Imaging (<1kV) to characterize the actual sample surface. Variable-Pressure Imaging, which eliminates the use of carbonaceous or metallized coatings to reduce surface charging, will also be discussed. Variable pressure imaging has become a game-changer characterizing the true sample surface.


"Hitachi" Bob Passeri earned his BS in Physics from DePaul University in Chicago, IL and an MS in Material Science from the University of Wisconsin at Madison. He started a research & development lab for a super-abrasives company to assist in characterizing their sub-micron product line via metrology and SEM/EDS and has gone on to run an SEM/EDS laboratory to perform failure analysis as well as particle size distribution measurements. He has been with Hitachi High Technologies America for 15 years, first in a Field Service role. then as an Applications Engineer and, for the past four years, as a Sales Representative, where he enjoys helping scientists solve characterization problems through the use of Hitachi products and services.

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  • Matthew Cowles
  • Lea Morath
  • Join Uddin
  • Zohreh Salimi

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