Yee-wen Yen is an Associate Professor at the Department of Materials Science and Engineering at the National Taiwan University of Science and Technology. He received his B.S., M.S., and Ph.D. degrees in chemical engineering from the National Tsing Hua University, Taiwan. His research is focussed on the phenomena of interfacial reaction between lead-free solders and several substrates. During his Ph.D. studies, he participated in advanced study in Germany at the Clausthal University of Technology. Following graduation, Yen served as a second lieutenant and an instructor in Army Chemical School in Taiwan and then took a job in the Central Research Institute of Chunghwa Picture Tubes, Ltd., where he developed the copper metallization process for thin-film transistor liquid crystal displays. Not so long time, he quitted his job in CPT and started his new life in Graduate Institute of Materials Science and Technology, National Taiwan University of Science and Technology since August 1, 2004. Now he focuses on the interfacial reactions, phase equilibria, interdiffusion, surface morphologies, and reaction paths in views of thermodynamics and kinetics. The systems he studies include leader-free soldiers and substrates or interconnect materials in SOFC, such as Sn-Ag-Cu, Sn-Zn-Ag, Sn-Cu-Au, or Fe-Cr-Ni, etc. Besides these research topics, he is also concerned about the phase equilibria among material systems mentioned above. By experimental methods and calculations with Panda, he tries to establish the thermodynamics database of different material systems. He also tries to develop a novel method to synthesize carbon nanotubes (CNTs). Due to his former work experience, he investigated the thermal stability between thin films in TFT-LCD, especially for a Cu metallization case. Meanwhile, he is also interested in the Bulk Metallic Glass, such as Zr-based and Cu-based systems.
Biography Updated on 11 July 2012