This is a brief report of my short visit to Norwegian University of Science and Technology (NTNU) to meet Prof. Zhiliang Zhang and his colleagues, started from 1st of Feb. 2014 to 6th. The university is the largest university of science and technology in Norway, and they are proud of that fact that 80% of engineers in Norway are educated in the university. The author had stayed as a research fellow in this research group NTNU Nanomechanical Lab for three years from 2009 to 2012, and familiar with the city of Trondheim, Norway. Visiting this university is a great pleasure of the author.