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edfas.org ELECTRONIC DEVICE FAILURE ANALYSIS | VOLUME 21 NO. 3 14 ABOUT THE AUTHORS EdwardL. Principe obtainedaPh.D. in engineering science fromThePennsylvania StateUniversity and M.S. and B.S. degrees in mechanical engineering from the University of Central Florida. He is founder and president of Synchrotron Research Inc., a designer andmanufacturer of imaging NEXAFS tools. Principe has authored two textbook chapters on FIB-Auger and FIB-based 3Dnanotomographic reconstruction and co-authored the EDFAS Best Paper in 2013 and EDFAS Outstanding Paper in 2017. He holds two patents in FIB-based 3D reconstruction and is focused on the development of compu- tational guided microscopy. Zachary E. Russell earned his B.S. degree in applied physics with honors fromAppalachian State University, Boone, N.C., and his Ph.D. in electrical and computer engineering from Duke University, Durham, N.C. He completedhis postdoctoral research fellowship at theGinzton Laboratory of Stanford University, Calif. Russell is the founder and director of R&D at Ion Innovations, and is working on research in metrology, instrumentation design and miniaturization, electron and ion source design, machine learning and computer vision, and related computational simulation and optimization techniques. Jeffery J. Hagen received his undergraduate degree in chemistry from Hamline University, St. Paul, Minn., and his Ph.D. in analytical chemistry from the University of California, Riverside. He is co-founder and managing director of PanoScientific LLC, driving development of compact electron spectrometers. He is also principal at Hagen Scientific leading the development of firmware and soft- ware controls for medical devices, test systems, and analytical instrumentation. Previously, Hagen was a software developer for Physical Electronics (Eden Prairie, Minn.) and Charles Evans & Associates (now Evans Analytical Group, EAG). KirkM. Scammon earned hisM.S. inmechanical engineering fromtheUniversity of Central Florida in 1996, where he studied corrosion and environmentally induced cracking of nickel-base superal- loys. He is co-founder and managing director of PanoScientific LLC, involved in the development of compact electron spectrometers. He is also a research engineer at the University of Central Florida, working primarilywith electron spectroscopy and electronmicroscopy. Scammon has participated in the development of two imagingNEXAFS spectrometers for the NIST beamline at NSLS-II, Brookhaven National Laboratory. Brian W. Kempshall earned a B.S. in mechanical engineering and Ph.D. in materials science and engineering from the University of Central Florida. He has co-authored over 20 refereed journal articles and conference proceedings. Kempshall is co-founder of Nanospective, a materials characterization company with over 14 years of experience in intellectual property asser- tion, competitive intelligence, reverse engineering, and failure analysis in the semiconductor, laser, optical, biological, polymeric, and geological materials industries. He is also co-founder of an analyti- cal instrument development company andworks with synchrotron instrumentation at national labs. Shane T. DiDona received dual B.S. degrees in chemical engineering and physics and an M.S. degree in chemical engineering from North Carolina State University, Raleigh, in 2011 and 2012, respectively. Presently, he is pursuing a Ph.D. with the Nanomaterials and Thin Films Laboratory, Duke University, Durham, N.C. His current research interests include computational charged particle lens design, instrumentation design, computer-aided design, simulation, computer vision, machine learning, and optimization. He is also co-founder and lead programmer at Ion Innovations, Atlanta. MathieuTherezien receivedM.S. degrees in engineering, physics, and chemis- try fromESPCI (Paris) in 2000, environmental sciences fromEPFL (Lausanne, Switzerland) in 2001, and forestry fromDuke University (Durham, N.C.) in 2008. He earned a Ph.D. in environmental engineering from Duke University in 2016. His research projects introduced novel visualization and simulation tools to the field of tree physiology. He joined the Ion Innovations team in 2017 as a research scientist where he works in the fields of machine learning, optimization, and computer vision.