POSITIONS AND EMPLOYMENT Professor, Department of mechatronic technology, National Taiwan Normal University Chairman, Department of mechatronic technology from 2005 to 2011 Dean, College of technology and engineering from 2016 to 2019 Research expertise Materials process and analysis, thin film technology, metal welding and joining, precision manufacture, energy technology and promotion RESEARCH INTRESTS The main areas have been teaching and doing research in the areas of thin film technology and precision welding engineering. I have a wide variety of research interests in many domains, such as PVD process, nanostructured gas-sensing technology, electrochromic material, friction stir welding, and vacuum brazing of thermoelectric module.