Abstract:
MEMS-based Inertial Measurement Units (IMUs) have found wide application in consumer-electronic devices such as smartphones, tablets, remote controls, earbuds, and drones, for gesture recognition, context awareness, navigation, and optical image stabilization. Advances in miniaturization, accuracy, and power efficiency of MEMS gyroscopes, the dominant component of MEMS-based IMUs, have been instrumental in enabling the near ubiquity of these sensors. In this talk, I will highlight some of the challenges raised by the conflicting goals of miniaturization, accuracy, and power efficiency, and how the readout architecture and circuits have evolved to address those challenges in several generations of consumer-electronic gyroscopes developed at Bosch.
Chinwuba D. Ezekwe received the B.S. and Ph.D. degrees in Electrical Engineering and Computer Sciences from the University of California at Berkeley in 2000 and 2007, respectively. Since 2007, he has been with Robert Bosch, where he has held IC design roles at Bosch Corporate Research working on sensor readout architecture and circuits, with particular focus on resistive sensors and MEMS gyroscopes. He is currently the Director of ASIC research at Bosch Sensortec and serving on the Technical Program Committee of the IEEE ISSCC.