Medical devices interfacing with the human body have been widely used to monitor body function, in some cases, influence it, and thus potentially enable bioelectronic therapies for diseases and conditions that currently cannot be treated adequately with medication alone. A key feature in translation towards clinical applications is device miniaturization to minimize device invasiveness to tissue and thereby enable efficient chronic device implantation. This in turn imposes limits on the amount of received power and the size of the antenna, thereby challenging the reliability of wireless power and data transmission. In this regard, my team is performing active research on analog, mixed, and power-management integrated circuit (IC) design, inductive, ultrasonic, and thermoelectric energy harvesting, and near-field wireless data transmission for developing wireless miniature medical devices. In this talk, I will present novel implantable and wearable biomedical devices with complex sensory and actuation functions that are uniquely enabled by IC technologies. Spanning from the development of sensor interface system-on-chip (SoC) to wireless power transmission strategies and to wireless data acquisition platforms, I will discuss the design of each fundamental component, and how these components come together to form the complete system. Finally, I will conclude this talk with future research directions of developing intelligent single-chip sensor interface and distributed architecture of tiny implants.

Dr. Yaoyao Jia received her Ph.D. degree in Electrical Engineering from Georgia Institute of Technology in August 2019. After that, she joined as an assistant professor in the Department of Electrical and Computer Engineering at North Carolina State University (NCSU) with affiliation to the ASSIST Center. Her research interests are primarily in analog and mixedsignal integrated circuits and systems for implantable and wearable biomedical devices, neural interface, and assistive and rehabilitation systems.