집적 회로 및 마이크로 시스템 연구실

Develop emerging microsystems such as intelligent miniature biomedical devices, ubiquitous wireless sensor nodes, and future mobile devices, by leveraging next-generation integrated circuit technologies as an enabling platform. When semiconductor industry is facing the limitation of further technology scaling which has been guided by Moore’s Law for last decades, it is very timely paying attention to new needs arising from emerging microsystems towards convergence. There is obviously a huge room for great innovation and value creation which can be materialized by creatively integrating diverse functionalities into microsystems using well-established and field-proven semiconductor and integrated circuit technologies. Interfacing with the brain through a large number of electrodes provides an effective way for neuroscientists and clinicians to study the dynamic connectivity and functions of the brain and understand the nature of various neurophysiological behaviors. My research group focused on the development of a high-efficiency neural stimulation ICs and neural recording ICs for bidirectional closed-loop neural interfaces. Ultrasound systems are essential tools for clinical diagnostics and therapeutics owing to its medical safety and low manufacturing cost. My research group developed extremely energy-efficient ultrasound transmitter and receiver, which can nicely interface with piezoelectric transducers (PZTs) and capacitive micromachined ultrasound transducers (CMUTs), enabling the extremely miniaturized ultrasound imaging system.