Seminar & Colloquium
[세미나: 8월 22일(화), 오후 4시] University of Hanyang, Prof. Yei Hwan Jung
Title
Stretchable RF Electronic Devices and Packaging Technology for Wireless Wearable Devices
Speaker
University of Hanyang, Prof. Yei Hwan Jung
Education
- 2011. 5. B.S., Electrical Engineering, University of Illinois at Urbana–Champaign
- 2015. 5. M.S., Electrical Engineering, University of Wisconsin–Madison
- 2017. 8. Ph.D., Electrical Engineering, University of Wisconsin–Madison
EXPERIENCE
- 2021. 3. ~ present Assistant Professor, Department of Electronic Engineering, Department of Biomedical Engineering,Hanyang University
- 2019. 12. ~ 2021. 1. Postdoctoral Researcher, Querrey Simpson Institute for Bioelectronics, Northwestern University
- 2017. 10 ~ 2019. 12. Postdoctoral Researcher, School of Chemical Engineering, Sungkyunkwan University
- 2012. 9. ~ 2017. 8. HHMI International Student Research Fellow, Department of Electrical and Computer Engineering, University of Wisconsin-Madison
- 2010. 6. ~ 2012. 6. Research Associate, Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign
| Date | Tuesday, August 22nd, 2023
| Time | 16:00 ~
| Venue | 33동 125호(WCU 세미나실)
[Abstract]
Stretchable electronics are utilized in various classes of wearable electronics, ranging from healthcare devices to skin-interfaced haptics. Wireless functionalities, including communication and power harvesting, are mandatory in almost all wearable applications. Yet, existing classes of wearable technologies only demonstrate wireless functionalities with modest performance, such as short communication distance and low efficiency. These limitations arise from the poor electrical, thermal and mechanical managements of the integrated circuits operating on soft, stretchy materials and from the shift in the wireless operating frequencies under mechanical strain due to skin stretch or bend, leading to diminished wireless signal strengths that reduce operating distance of wireless functions or in the worst case scenario, total failure of wireless modes. In this presentation, we present a set of techniques for high-performance wireless stretchable electronics. First, we show stretchable RF electronic devices, including transistors, passive elements and transmission lines that enable the processing of high-frequency signals. We then present a packaging approach that yield strain-unaffected wireless electronics capable of maintaining strong wireless signals for both communication and power harvesting applications under large elastic strains. The results presented in this approach enable reliable wireless operations of diverse wearable electronics, including healthcare monitoring and stimulation.
| Host | 강승균 교수(02-880-5756)