Bridging the Interface: Heterogeneous Integration for Bio-Integrated Microsystems

Speaker Name: 
Jan-Kai Chang
Speaker Title: 
Postdoctoral Research Associate
Speaker Organization: 
Center for Bio-Integrated Electronics at Northwestern University
Start Time: 
Thursday, February 28, 2019 - 12:00pm
End Time: 
Thursday, February 28, 2019 - 1:00pm
Mircea Teodorescu


The anticipated emergence of electronic solutions to pressing clinical challenges multiplies the demand for broad types of materials and devices that lie beyond the capabilities of conventional monolithic integration technology. Advanced strategies in heterogeneous integration and interface modification provide versatility in forming unusual format microsystems that have the potential to create important new categories of technologies with wide-ranging application possibilities in clinical healthcare.


This talk will focus on the translation of state-of-the-art Si CMOS technology that can serve as the manufacturing basis for unusual format electronics. A collection of engineering strategies that establish the foundations for scalable heterogeneous integration of this type will be discussed, including demonstration examples ranging from atomically thin crystals, to building block devices, to interconnected microsystems. Deterministic assembly of foundry-based Si microchips for electrophysiology will also be presented as a novel platform that offers sophisticated modes of operation at biohybrid interface. Such capabilities expand the scope of engineering options for shape-conformal biosensors and other types of bioresorbable electronics that dissolve after use.


Dr. Chang is currently a postdoctoral research associate in Center for Bio-Integrated Electronics at Northwestern University working on foundry-compatible bioelectronics with Professor John A. Rogers. He received his PhD in Photonics and Optoelectronics from National Taiwan University in 2015. He was also a MOST Research Fellow in the Department of Physics and Kavli Nanoscience Institute at Caltech in 2014 and a MOST Postdoctoral Fellow in Department of Materials Science and Engineering at UIUC in 2016. His current research involves heterogeneous integration and interface engineering to build ultrathin optoelectronics, biodegradable electronics, and unusual format microsystems, all lately with an emphasis on the translation of Si CMOS technology for bioelectronic medicine.