Zejia Zhao is currently an assistant professor at Shenzhen University. 2016.12–2019.09, Hong Kong Polytechnic University, State Key Laboratory of Ultra-precision Machining Technology, Doctoral degree. 2012.09–2015.01, Harbin Institute of Technology, School of Materials Science and Engineering, Masters degree. Main research areas: (1) Precision machining processes and equipment for materials such as titanium alloys and semiconductors; (2) Ultra-precision processing technology for micro and nano structures; (3) Robot-based precision polishing process and equipment; (4) Chemical-mechanical polishing process for semiconductor wafers.