Dr. Chang is an ACM Fellow and an IEEE Fellow for contribution to low-power design. Dr. Chang is the Editor-in-Chief of the ACM (Association for Computing Machinery) Transactions on Design Automation of Electronics Systems, and an Associate Editor of IEEE Transactions on Very Large Scale Integration Systems. He also served for IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, IEEE Embedded Systems Letters, ACM Transactions on Embedded Computing Systems, and so on, as an Associate Editor. Dr. Chang is (was) the General Co-Chair of VLSI-SoC (Very Large Scale Integration), ICCD (International Conference on Computer Design) 2014 and 2015, ISLPED 2011, etc. Dr. Chang is (was) Technical Program (Co-) Chair of DAC (Design Automation Conference) 2016, ASP-DAC (Asia and South Pacific Design Automation Conference) 2015, ICCD 2014, CODES+ISSS (Hardware Software Codesign and System Synthesis) 2012, ISLPED 2009, etc. Dr. Chang is the Past Chair of ACM SIGDA (Special Interest Group on Design Automation).
Dr. Chang is a recipient of several ISLPED (International Symposium on Low-Power Electronics and Design) low-power design contest awards, 2012 SAE Vincent Bendix Automotive Electronics Engineering Award, 2014 ISLPED Best Paper Award, 2009 IEEE SSCS Seoul Chapter Award, etc. Dr. Chang was LG Yonam Foundation Research Professor in 2005.