Sisouk Phrasavath "Si" was a factory trained TEM (Transmission Electron Microscope) Field Service Engineer from FEI (formerly Philips), Eindhoven, Netherland. My responsibility at Eyring Materials Center is to maintain Electron Microscopes, their supporting equipment, train/assist the SEM (Scanning Electron Microscope) users, assist the local Grade/High School students via the outreach and science fair program to understand the functionalities/capabilities of the SEM.