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Doohwang Chang is a Senior Design Engineer at Alphacore Inc. since November 2017, specializing in the design of integrated circuit blocks including switch capacitor circuits, ADCs, DACs, VCOs, LDOs, bandgaps, and opamps. Previously, Doohwang served as a Research Assistant at Arizona State University from August 2010 to December 2017, focusing on RF and analog/mixed-signal IC design and reliability enhancement techniques. Additionally, Doohwang worked as an Analog Design Engineer at Intel Corporation and a Product Test Engineer at NXP Semiconductors, gaining valuable experience in power supply IC design and test optimization. Doohwang holds a Ph.D. and an M.S. in Electrical and Electronics Engineering from Arizona State University and a Bachelor's degree from Kyungpook National University.