Tech Summit

John Lee


Dr. John T.C. Lee leads MKS, pushing the boundaries of possibility. He takes a rational, disciplined approach to all aspects of the company, which enables the delivery of innovative technologies and sustainable, profitable growth. Dr. Lee believes in four guiding principles – Grow, Win, Innovate, and Own. It’s this blend of rationality, respect, creativity, and commitment that drives MKS to power technologies that transform our world.

Prior to joining MKS, Dr. Lee held leadership roles at Maydan Technology Center, Wet Clean and Solar Business Groups at Applied Materials. Dr. Lee started his career as a Member of Technical Staff at Bell Laboratories, Murray Hill, rising to Director of the Silicon Fabrication Research Department.



MKS Instruments, Inc. is a global provider of instruments, subsystems and process control solutions that measure, control, power, monitor, and analyze critical parameters of advanced manufacturing processes to improve process performance and productivity. At MKS, we have a long history of leveraging our collective curiosity to understand and develop solutions that are at the core of many key technological innovations. These innovations have driven accelerated roadmaps for Semiconductor, Industrial, Life and Health Sciences, Research and Defense markets.