David Medeiros joined Entegris as a Senior Director of Engineering in the office of the CTO in April of 2021. His responsibilities involve developing an enterprise-wide lithography strategy, with a primary focus on the rapidly expanding field of EUV, as well as developing a holistic, sustainability innovation program across all Entegris divisions. Previously he spent six years at GLOBALFOUNDRIES (GF), first as the Senior Director of Patterning at Fab 8 in Malta, NY, and later as the Vice President of Central Engineering. Prior to GF, he spent 17 years at IBM, starting as a Research Staff Member at T. J. Watson Research Center and culminating as the Director of Patterning R&D in the Microelectronics Division. His career began in the semiconductor industry as a synthetic chemist at the Shipley Company, which is now part of DuPont. David holds a Ph.D. in Organic Chemistry from the University of Texas at Austin and a B.S. in Chemistry from the University of Massachusetts at Amherst. He is the co-author of more than 50 publications in refereed journals and conference proceedings and holds 55 issued patents, largely in materials for applications in semiconductor manufacturing.