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  • Image of Mike Slessor

    Mike Slessor

    President and Chief Executive Officer

    Michael D. Slessor has served as our Chief Executive Officer of FormFactor, Inc. since December 2014, and as a Director since October 2013. Mike served as President from October 2013 to December 27, 2014, and as Senior Vice President and General Manager, MicroProbe Product Group from October 2012 to October 2013. Before joining FormFactor, he was President and Chief Executive Officer of MicroProbe from July 2008 through the October 2012 closing of FormFactor’s acquisition of MicroProbe. Prior to joining MicroProbe, he held various management, product-marketing, and applications-engineering positions in the semiconductor industry, primarily with KLA.

    Mike received his Ph.D. in Aeronautics and Physics from the California Institute of Technology and his B.A.Sc. in Engineering Physics from the University of British Columbia.

  • Image of Shai Shahar

    Shai Shahar

    Chief Financial Officer

    Shai Shahar has served as our Chief Financial Officer since March 2018. Shai has more than 25 years of financial leadership and management experience. Prior to joining FormFactor, he served as the Vice President of Finance & Operations at Nova Measuring Instruments. From 2014 to 2016, Shai served as Vice President Finance and Corporate Controller of PMC-Sierra, Inc., where he also served as its Vice President Finance, FP&A, from 2010 to 2014. Prior to that, Shai was Chief Financial Officer of Wintegra, Inc., until its acquisition by PMC-Sierra.

    Shai is a certified public accountant in Israel and received his bachelor’s degree in Accounting and Economics in 1998 from the Recanati School of Business, Tel-Aviv University, Israel.

  • Image of Amy Leong

    Amy Leong

    Senior Vice President, Chief Commercial Officer

    Amy Leong has served as Senior VP, Chief Commercial Officer since January 2023, responsible for global customer sales and services, corporate marketing and M&A. From 2012 to 2022, she has held various management positions with FormFactor including Chief Marketing Officer and General Manager. Prior to FormFactor, Amy was VP of Marketing at MicroProbe from 2010 through the October 2012 closing of FormFactor’s acquisition of MicroProbe. Before joining MicroProbe, Amy worked at Gartner, Inc. as a Research Director from 2008 to 2010 and covered the foundry & logic market and various emerging applications. From 2003 to 2008, Amy worked at FormFactor where she served as Senior Director of Corporate Strategic Marketing and Director of DRAM Product Marketing. Prior to FormFactor, she worked in a variety of semiconductor process engineering, metrology, and product marketing roles at KLA and IBM. Amy currently serves as an independent board of director at Skywater Technology (NASDAQ: SKYT), the only US-investor owned pure-play semiconductor and technology foundry.

    Amy holds an M.S. in Material Science and Engineering from Stanford University and a B.S. in Chemical Engineering from the University of California, Berkeley.

  • Image of Jarek Kister

    Jarek Kister

    CTO and Senior Vice President of Technology R&D

    Jarek (January) Kister has served as our CTO and Sr. VP of Engineering & Product Development since January 2014. Prior to this, Jarek served as the CTO & VP of Engineering of the MicroProbe Product Group from October 2012 to January 2014. Before joining FormFactor, Jarek was the CTO and VP of Engineering for MicroProbe from April 2004 until the closing of FormFactor’s acquisition of MicroProbe in October 2012. Jarek’s aforementioned role at Microprobe was preceeded by his role as the Vice President of Engineering with Kulicke & Soffa Industries, Test Division from 2000 to 2004. From 1990 to 2000, he served as Director of Engineering and later as Chief Technical Officer with Probe Technology, Inc. Jarek holds more than 30 U.S. patents pertaining to the semiconductor wafer and package test.

    Jarek holds an M.S. in Mechanical Engineering from the University of Michigan, and a B.S. in Mechanical Engineering from Polytechnic of Silesia, Poland. Additionally, he is a graduate of the Advanced Management Program from the Haas School of Business at the University of California, Berkeley.

  • Image of Steven Nott

    Steven Nott

    Chief Information Officer

    Steven Nott has served as our Chief Information Officer since October, 2020. Steven has over 20 years of experience in Information Technology. Steven held various Information Technology positions within Cypress Semiconductor before becoming its first Chief Information Officer in 2012.

    Steven holds a BS in Accounting and Management Information Systems from San Jose State University.

  • Image of Matt Losey

    Matt Losey

    Executive Vice President and General Manager of the Probes Business Unit

    Matt Losey has served as our Executive Vice President since 2022 and Senior Vice President and General Manager of the Probes Business Unit since 2016. Matt joined FormFactor in 2011. Prior to joining FormFactor, Matt held various positions in the semiconductor and microsystems industries, including Applied Materials, Texas Instruments, Sandia National Labs, and Advantest America where he served as the VP of Engineering for the probe card business unit acquired from Verigy.

    Matt received his Ph.D. in Chemical Engineering from the Massachusetts Institute of Technology and his B.S. in Chemical Engineering from Stanford University.

  • Image of Christy Robertson

    Christy Robertson

    Vice President and General Counsel

    Christy Robertson joined FormFactor in 2017 and serves as our Vice President and General Counsel. Christy has over 15 years of experience as a corporate lawyer. Prior to joining FormFactor, Christy managed a full range of commercial legal affairs in senior roles at Robert Half International Inc., the world’s largest specialized staffing firm, and its subsidiary Protiviti Inc., a global internal audit, risk and compliance consulting firm. Before her legal career, Christy held sales and marketing positions at USA TODAY and Robert Half International, Inc.

    Christy earned her Juris Doctor from Golden Gate University, her B.A. from the State University of New York College at Buffalo, and is a member of the California State Bar.

  • Image of Jens Klattenhoff

    Jens Klattenhoff

    Vice President and General Manager, Systems Business Unit

    Jens Klattenhoff has served as our VP and General Manager of Systems Business Unit since January 2021. He joined FormFactor in October 2016 as Director Product Marketing for the Systems Business Unit. From April 2018 until December 2019 he served as Sr. Director Marketing. Jens has over 20 years of experience in test & measurement technologies. Before joining FormFactor he held various Sales & Marketing leadership positions at Polytec GmbH, Baumer Optronic GmbH and other multi-national technology companies.

    Jens holds a Dipl.-Ing. in Applied Laser Science from Applied University Emden, Germany and is an SGBS Certified Executive Management Expert of the St. Gallen Business School in Switzerland.

  • Image of Aliza Scott

    Aliza Scott

    Chief Human Resources Officer

    Aliza Scott joined FormFactor in 2022 and serves as our Senior Vice President and Chief Human Resources Officer. Prior to joining FormFactor, Aliza held progressive operating company, segment and corporate HR leadership roles at Fortive, most recently serving as the Vice President of HR Transformation & Technology. Prior to that, she worked in various senior HR leadership positions in multiple global technology companies including Danaher, Tripwire, Autodesk and FEI Company.

    Aliza holds a B.A. degree from Oregon State University.

  • Image of Thomas Fries

    Thomas Fries

    Vice President and General Manager, Emerging Growth Business Unit

    Thomas Fries has served as VP and General Manager of the Emerging Growth Business Unit since January 2023. He joined FormFactor in 2019 through the acquisition of FRT GmbH, after nearly three decades of innovation and entrepreneurship in metrology for semiconductor wafers, advanced packaging, MEMS, optics, and other technologies. Thomas also currently serves as a supervisory board member for Plan Optik AG and he previously held long-time board positions with IVAM Microtechnology Network and the Centrum für Organische Produktionstechnologien in Nordrhein-Westfalen. Dr. Fries has published dozens of technical papers and articles, and he holds a PhD in Physics from the University of Bonn and a Physics Degree from the Saarland University.