Speaker: Erdinç Tatar

Title:  Finding Solutions to the MEMS Gyroscope Drift Problem

Date/Time: 23 December 2020/ 13:30 - 14:30

Zoom: Meeting ID:  354 162 7761

Passcode:  sem2034T

Abstract: In this talk I will mainly focus on my PhD research in Carnegie Mellon University and extending my PhD work on sensor drift suppression.  One major performance limiting problem that is common among most of the sensors is the drift.  Environmental stress and temperature effects are believed to be the major source of the drift and the latter is studied the most in the literature.  Certain enhancements are achieved but the sensor drift cannot be removed completely by temperature compensation.  My PhD thesis successfully addressed the drift problem for gyroscopes by incorporating the stress sensor and the gyroscope on the same die for the first time.  Through ovenization my research demonstrated that stress compensation suppresses the long term drift by seven fold.  Since stress compensation achieved promising results, I would like to extend this work by designing better on-chip stress sensors, investigating the die stress with different die attaches and die mount techniques, and applying stress compensation to a circular gyroscope.

Bio:Erdinc Tatar received B.S. and M.S. degrees (with high honors) in Electrical and Electronics Engineering from Middle East Technical University (METU), Ankara, Turkey, and Ph.D. degree in Electrical and Computer engineering from Carnegie Mellon University, Pittsburgh, PA, in 2008, 2010, and 2016 respectively.

He was a Graduate Research Assistant with Micro-Electro-Mechanical Systems Research and Applications Center, METU, and with Carnegie Mellon University from 2008 to 2011, and 2012 to 2016, respectively.  From 2016 to 2019 he worked as a MEMS Design Engineer responsible for the development of next generation gyroscopes in Analog Devices, Inc., Wilmington, MA.  Currently he is an assistant professor with the Department of Electrical and Electronics Engineering and UNAM in Bilkent University.  His research interests include MEMS sensors (specifically Inertial and Gas sensors), microfabrication and packaging technologies, and readout and control electronics for MEMS sensors.