DTMES 2022 - Presentation

Challenges in Compact Modeling and Characterization of Organic FETs
Fetene Mulugeta Yigletu, Assistant Professor, AAiT,. Ethiopia

Abstract - Organic FETs (OFETs) have become great enablers in flexible and printed electronics. The device processing technology, both in terms of material and device structure, is improving magnificently. To harness the most out of these devices, device level design and circuit simulations are critical. However, compact models of good quality have not been developed yet to realize the circuit simulations. Basic compact models have already been introduced following the fundamental similarities with their inorganic FET counter parts. In order to increase the robustness of these models the unique features of organic FETs have to be accounted for. This work presents the challenges of incorporating the special features into the existing models in an effort to develop accurate OFET compact models that can be used in circuit simulation tools. Modified solutions and best practices are also explored based on device characterization and modeling work recently conducted in our group.

Fetene Mulugeta Yigletu has received his MSc and PhD in Electronics Engineering in 2011 and 2014, respectively, from University of Rovira i Virgili, in Tarragona Spain. He was a postdoctoral researcher in the same university for more than a year until he moved to Arizona State University to start another postdoctoral position. He was also a postdoctoral research fellow at University of California in Davis. He then joined Addis Ababa Institute of Technology as an Assistant Professor in mid 2017 where he is serving at the present. He has authored and co-authored a number of research works that are focused on compact modeling of modern Field Effect Transistors. His research focus are the new era new material FET, such as GaN based devices and vertical transistors and currently he is also widening his research area towards Organic FETs leading to printed and flexible electronics.