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Thursday, Sept. 8, 2011
10:45 a.m., NSERL 3.204








"Miniaturized Directional Microphones and Microspeakers for Hearing Aids Applications"
Junseok Chae, Associate Professor, University of Michigan

MEMS (Micro-Electro-Mechanical-Systems) are attractive for small size, low power, light weight, and potentially low cost.  Many MEMS devices have been successfully commercialized such as inkjet printer heads, acceleration sensors, pressure sensors, gyroscopes, and digital mirrors.  In this talk, I present MEMS-based directional microphones and microspeakers for hearing aids applications.  ~ 10% of population in US are having hearing difficulty/impair. Statistically ~ 30% or more of age of 60 or older and ~ 2% of age of 18 or younger are having hearing difficulty/impair. Despite of such large population not many young patients currently use hearing aids, partially because of social stigma. This project is to aim to develop miniaturized hearing aids components (microphones and microspeakers) to explore possibility of directional and low power hearing aids.

Junseok Chae received the B.S. degree in metallurgical engineering from the Korea University, Seoul, Korea, in 1998, and the M.S. and Ph.D. degrees in EECS (Electrical Engineering and Computer Science) from the University of Michigan, Ann Arbor, in 2000 and 2003, respectively. After a couple of years of being research fellow at Michigan, he joined Arizona State University as an assistant professor in electrical engineering in 2005 and now he is an associate professor. His research areas of interest are MEMS for biomedical applications.
He received the 1st place prize and the best paper award in DAC (Design Automation Conference) student design contest in 2001. He has published over 80 journal and conference articles, one book, two book chapters, and holds two US patents. He received NSF CAREER award on MEMS protein sensor array.