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DTSTART:20240101T000000
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DTSTART;TZID=Europe/Moscow:20240417T110000
DTEND;TZID=Europe/Moscow:20240417T143000
DTSTAMP:20260906T171629
CREATED:20240415T075937Z
LAST-MODIFIED:20240415T080032Z
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SUMMARY:The path to no-drift sensors with on-chip stress calibration
DESCRIPTION:Erdinç Tatar\nBilkent University – Electrical and Electronics Engineering\, UNAM \n\nThe path to no-drift sensors with on-chip stress calibration \nNavigation is vital for the future of autonomous mobility.  Data from multiple sensing modalities (GPS\, camera\, radar\, …) are fused in navigation.  Among these sensors\, inertial navigation is error-proof and can fit into every car and smartphone if a low-cost\, no-drift sensor is invented.  Drift is a major problem for inertial sensors\, limiting their utilization in navigation applications.  Inertial sensor data\, i.e.\, acceleration and rotation\, is integrated to find the position\, and drift leads to unacceptable position error over time.  The common drift suppression approach is temperature calibration\, but various works have shown that it cannot eliminate the drift.  The drift mechanisms are complex and cannot be fully characterized by simple temperature measurements.  So\, I propose an on-chip stress calibration approach that directly correlates with the drift. We integrate multiple stress sensors and the inertial sensor on the same chip and achieve state of the art drift performance with on-chip stress sensing.  Functional calibration requires deep understanding of the device and temperature effects.  I will present our drift solution approach\, which includes sensor and electronics design\, analytical modeling\, and combining temperature and stress measurements. \n \nAbout speaker\nErdinc Tatar is an Assistant Professor in the Department of Electrical and Electronics Engineering at Bilkent University.  He is also affiliated with National Nanotechnology Center of Turkey (UNAM).  He 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. \nHe 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.  His research interests include MEMS sensors (specifically Inertial and Gas sensors)\, microfabrication and packaging technologies\, and readout and control electronics for MEMS sensors. \nDr. Tatar is a recipient of International Fellowship for Outstanding Researchers by TUBITAK\, Marie Skłodowska-Curie Actions (MSCA) Fellowship and European Research Council (ERC) Starting Grant by the European Union. \n \n  \n  \n\n  \n 
URL:https://unam.bilkent.edu.tr/en/event/the-path-to-no-drift-sensors-with-on-chip-stress-calibration/
CATEGORIES:Nanocolloquium Series
ATTACH;FMTTYPE=image/jpeg:https://unam.bilkent.edu.tr/en/wp-content/uploads/2024/04/etatar_photo.jpg
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BEGIN:VEVENT
DTSTART;TZID=Europe/Moscow:20240417T133000
DTEND;TZID=Europe/Moscow:20240417T143000
DTSTAMP:20260906T171629
CREATED:20240415T104850Z
LAST-MODIFIED:20240415T131258Z
UID:8681-1713360600-1713364200@unam.bilkent.edu.tr
SUMMARY:The Sound of Music at the Nanoscale – Exploring the Nanoscale World with NEMS Resonators Based on Low Dimensional Nanomaterials
DESCRIPTION:Zenghui Wang\nUniversity of Electronic Science and Technology of China \n\nThe Sound of Music at the Nanoscale – Exploring the Nanoscale World with NEMS Resonators Based on Low Dimensional Nanomaterials \nThe advent of low-dimensional nanostructures has enabled a plethora of new devices and systems. Among them\, nanoelectromechanical systems (NEMS) offers the unique capability of coupling the exquisite material properties found in these atomically-defined nanostructures with their mechanical degree of freedom\, opening new opportunities for exploring exotic phenomena at the nanoscale. In particular\, as these devices driven into mechanical vibration—just as musical instruments—they become essentially nanoscale guitars\, drums\, tuning folks\, etc. By studying the infinitesimal mechanical vibrations in these nanoscale “music instruments”\, i.e.\, listening to the “sound of music” at the nanoscale\, researchers can study a number of fundamental physical processes such as absorption\, phase transition\, anisotropy\, and nonlinear processes. \n \nAbout speaker\nZenghui Wang is currently a professor in the Institute of Frontier and Fundamental Sciences (IFFS) at the University of Electronic Science and Technology of China (UESTC). His research interests and expertise primarily focus on nanoscale devices and systems\, particularly Nanoscale Resonators\, and High-Frequency Resonant Sensors & Transducers. Prior to joining Case\, during 2010-2012\, he worked at Cornell University as a postdoc researcher. He earned a Ph.D. degree (2010) from University of Washington\, Seattle\, for building an ultra-high frequency NEMS resonant sensor with an individual single-walled carbon nanotube\, and using it to detect and study the low-dimensional phase transitions of the atomic layer adsorbed on the nanotube surface. He is an expert on studies of emerging nanoscale devices and sensors based on new materials such as carbon nanotubes\, graphene\, and other low-dimensional nanomaterials\, and has published 20+ research articles in peer-reviewed journals\, including Science\, Nature Physics\, Nature Nanotechnology\, Nature Communications\, Science Advances\, Nano Letters\, ACS Nano\, Physical Review Letters\, 2D Materials\, etc.\,. He has given dozens of invited talks and seminars at peer-reviewed conferences and research universities. He is an Associate Editor for Micro and Nano Letters\, and has been serving on the Technical Program Committees for IEEE IFCS\, IEEE Nano\, and the MEMS/NEMS Technical Group at the American Vacuum Society (AVS) International Symposium and Exhibition. \n \n  \n  \n\n  \n 
URL:https://unam.bilkent.edu.tr/en/event/the-sound-of-music-at-the-nanoscale-exploring-the-nanoscale-world-with-nems-resonators-based-on-low-dimensional-nanomaterials/
CATEGORIES:UNAM Seminars
ATTACH;FMTTYPE=image/png:https://unam.bilkent.edu.tr/en/wp-content/uploads/2024/04/Zenghui-Wang.png
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