Mark Helsel is a Photolithographic Engineer at Matthews International at Matthews International. He possess expertise in mems, manufacturing, sensors, testing, optics and 22 more skills. Colleagues describe him as "I have had the pleasure of working with Mark for many years at Microvision. Mark has a broad expertise in MEMS devices that includes their design as well as the development of new MEMS processes to improve yield and performance. Together we visited a number of MEMS foundries around Asia and Mark's technical assessment was key in choosing the high volume manufacturing partner to produce Microvision's MEMS devices." and "Mark has been a continuous contributor in the MEMS group at MicroVision for over a decade. These contributions helped enable the first MEMS based displays at MicroVision as well as multiple generations of these and other devices thereafter. For the Global Manufacturing Technology team, Mark’s support in working with us in developing custom wafer probe stations, MEMS based assembly test stations and various other engineering level test equipment and processes has been essential. Recently, Mark has been continuously involved in communication with our supply chain for MEMS fabrication by tracking metrics at all levels of fabrication test as well as post assembly testing. His feedback to both my team and others on these metrics has been a great support."