Kateryna Artyushkova


Kateryna has received an M.A. Degree with Honors in chemistry from the National Technical University of Ukraine, Kyiv in 1995. She obtained her Ph.D. in chemistry from Kent State University in December of 2001.

She was a Research Associate Professor at the Chemical Engineering Department of the University of New Mexico and Associate Director for the Center for Microengineered Materials until 2018.

Kateryna joined PHI in September of 2018 as a senior staff scientist working in Analytical Laboratory with a focus on the XPS product line. She has been promoted to Director of Marketing in 2021 and to Director of Analytical Laboratory in 2022.  The Board of Directors has appointed Kateryna Artushkova as President and member of the Board of Directors effective July 1, 2022.

She has co-authored 200+ peer-reviewed publications and four book chapters. She is a North American Editor of Surface and Interface Analysis Journal. Her hobbies include singing and dancing. She is passionate about “creating valuable information from vacuum” using surface analysis equipment.

                                                                                                                                                                                            Milo Cumaranatunge

Executive Director of Research & Development

Milo graduated from the University of Kansas with a degree in Electrical Engineering and Computer Science.

He was introduced to Surface Science doing research with Prof. Ted Kuwana on simulating the chemistry of high-surface-area carbon fiber electrodes at the University Bioanalysis Lab.

He joined Physical Electronics in 1997 as a Software Engineer and later became the Manager of the Electrical Engineering group.

Currently, Milo is the Executive Director of Engineering at PHI.

When he is not overseeing engineering development activities at PHI or in collaboration with ULVAC-PHI, Milo likes to travel, and he writes fiction. Milo is a published author and is in the board at Graywolf Press. 


Evaristo Contestabile

Executive Director of Sales

Evaristo graduated from the University of Rome “La Sapienza” in mechanical engineering in 1987.

After the mandatory military service, he started his career in 1989 in Italy at Texas Instruments in a DRAM semiconductor fab. He spent there eight years covering several positions from the initial Equipment Engineer in the Plasma-Lithography department to the Metrology Section Manager in the QRA department.

Evaristo joined Physical Electronics in 1997 as Service Product Manager of the TOF product line.

In 2000 he assumed responsibility for all service aspects of the 300mm Auger product line. In 2003, he was promoted to Director of International Service and European Sales Support Manager.

In 2005 Evaristo became Director of Sales and in 2010 he was elected to the Board of Directors.  

                                                                                                                                                                                           Pamela Smith Williams

               Chief Financial Officer

Pamela graduated from Augsburg College with a degree in Accounting and a minor in Business Administration.  

Pamela joined PHI in February of 1997 as a clerk in the Accounts Receivable Department.   She was quickly promoted to Receivables Manager and has since held a variety of positions in the finance department, both as an employee and as a contractor consultant.   Over the years, her roles have included, various Staff Accountant positions, IT Implementation Liaison, Finance Manager and Assistant Controller.  Immediately prior to her promotion to CFO she fulfilled the role of Corporate Controller.  

Never someone to be without a project, in her spare time, she enjoys spending time with her large extended family, reading, writing, gardening and horseback riding.


Brian Yates

Director of Customer Service

Brian graduated from United States Navy Advance Electronics training program in 1988.

After six years and three deployments in the US Navy, he worked at NCR Corp for seven years. Joining Physical Electronics as a Field Service Engineer in October of 2000, Brian supported the Auger, XPS and Dynamic SIMS product lines.

In 2007 he was promoted to Lead Service Engineer and then Regional Service Manager for Eastern North America in 2013. In 2023 Brian was promoted to Director of Customer Service.       

Brian’s time outside of work is spent building furniture, reading, and traveling.    






18725 Lake Drive East, Chanhassen, MN 55317
© 2024 Physical Electronics, Inc. (PHI) All Rights Reserved.
© 2024 Physical Electronics, Inc. (PHI) All Rights Reserved.