Interconnections that support next-generation power devices
Keito Ota & Haruka Miyano, 2nd Grade, Master’s Programme
Among advanced material researches, Tatsumi Lab’s research is focused on the field of interconnections. More specifically, it engages in research related to high temperature resistant packaging technologies for power devices, insulating materials (insulating polymer composites, etc.). Tatsumi Lab features a wide range of equipment and analysis instruments. It has a large number of students and researchers, may well rank among the largest laboratories at IPS.
I am presently conducting research into the theme of “A Study on High Temperature Resistant Packaging Technology for Power Devices using Ni Micro Plating Bonding.” While my regular research workflow is based on experiments, I have recently incorporated FEM(Finite Element Method)-based thermal conductivity and thermal stress analysis into my research, and am now addressing issues using a combination of experiments and simulations. I have been learning a lot through simultaneously engaging in experiments and analysis, and provide progress reports on my research in our weekly seminars. I always look forward to these as they provide a valuable opportunity to discuss issues with a larger group of professionals consisting of our professors and fellow researchers. Half of the lab students come from overseas, and I enjoy the international environment. One of the nice aspects of IPS is that I can spend my days here without ever losing interest. (Written by K.Ota)
As our academic advisor, Professor Tatsumi shares his wealth of knowledge with students and always puts us first. Whenever we encounter an obstacle in our research, he generously shares his ideas and knowledge with us. Outside of actual research, he takes the lead in organizing such events as welcome parties for new students and farewell parties for graduates, deepening exchange in the lab, and caringly offering consultation to students having a hard time with their job hunting. He is a very kind person who supports his students both in his capacity as professor and as a personal mentor. With half of the students being foreign nationals, the lab is a place of vigorous cultural exchange where you are constantly exposed to English and Chinese conversation. I believe this is one of the key advantages of being able to study at IPS. We invite all people interested in IPS or the Tatsumi lab to come visit us and look forward to welcoming you here. (Written by H.Miyano)
(Left to the right : Ultrasonic bonding equipment, Auger electron spectroscopy, and Welcome party)