Seminar
■ Topic :
Transient Electronics — Lifetime Controlled Electronics
for Biomedical Sensing and Treatment
■ Speaker : 11/16(Tue) Dr. Seung-Kyun Kang (Dept. of
MSE, University of Illinois at Urbana-Champaign)
■ Invitation : Prof. Jeon, Seokwoo
■ Date
& Time : November 16 (Wed) 14:00
■ Venue :
KAIST Applied Engineering B/D(W1), #2429 (2nd Floor)
■
Abstract : Reliability of electronic devices represents their durability and
long-term operation in the most of electronics industry. Transient
electronics, an emerging class of electronics pursuing the device systems all
of whose materials physically/chemically disappear, assigns a new time frame to
reliability: stable operation on a brief, temporary time scale. Applications of
transient electronics range from zero-waste green electronics and biodegradable
medical devices to hardware-controlled security systems. Here we report on
recent progress in dissolution chemistry of electronic materials, functional
degradation of integrated devices, encapsulation strategy for lifetime control,
and their biomedical and hardware security applications. Hydrolysis kinetics
of silicon, germanium, silicon oxide and nitride in various pH buffer solutions
open the way to high- performance electronic materials in biodegradable
form. Electronics of various active and passive components and their
integrated circuit on a soft bioresorbable polymer provide biomedical implants
interfacing to tissues and organs. Representative examples of biomedical
applications include intracranial pressure monitors for traumatic brain injury,
electrical stimulators for nerve and cardiac modulation, and drug delivery
vehicles for cancer treatment. In addition, trigger transient
electronics, which control device life-cycles on demand, offer self-destructing
electronics beneficial in military and personal security protection.