Dr. Navnidhi K. Upadhyay

Nanoelectronic Devices and Circuits Lab Cell: +1-413-336-1992 University of Notre Dame Email: [email protected] SR 131, Stinson Remick Hall [email protected] Notre Dame, IN 46556, USA https://ndclab.nd.edu/

EDUCATION University of Massachusetts, Amherst [Aug’15-Jan’21] Ph.D., Department of Electrical & Computer Engineering Advisor: Prof. Jianhua (Joshua) Indian Institute of Technology, Bombay [Jul '13- July '15] MTech., Electronic Systems Advisor: Prof. Bipin Rajendran Thesis: Fabrication of nanoscale devices for Neuromorphic Computing and their System-level implications National Institute of Science and Technology, Orissa [Jul' 06- May' 10] BTech., Electronics, and Communication Engineering Advisor: Prof. Ajit Panda Thesis: Study of 2-D HEMT Devices

RESEARCH EXPERIENCE ▪ Research area: - Emerging Memory Devices - Selector-Memristor Integration - Crossbar arrays - Neuromorphic/Brain-inspired computing - ML Hardware accelerator - Nano Fabrication

University of Notre Dame Postdoctoral Research Scientist [Apr'21-present] • Ferroelectric-Transistors and their applications. University of Massachusetts, Amherst Research Assistant [Aug'15-Feb'21] • Develop and characterize YSZ-based low energy, fast memristor devices for 1S1R passive array. • Engineer trilayer tunnel selector to achieve record nonlinearity for high-density Passive Crossbar Array. • Study environmental gating effect on memristive devices. • Sensor-memristor integration for the biomimetic tongue. • Implement in situ supervised training of support vector machine on large-scale 1-transistor-1-memristor arrays. Oak Ridge National Laboratory Research Intern [Sept'19-Apr'20] • Develop in-situ TEM electrical biasing lamella (chip) using FIB. • In-situ TEM experiments to study dynamics for memristive applications. • EELS and EDX data analysis. • APT (Atomic Probe Tomography) sample preparation and electrical cycling of the needle in the FIB chamber. • Study Ru dynamics using APT for memristor applications. Indian Institute of Technology, Bombay Master's Thesis [Dec'13-Jul '15]

• Develop and characterize Cu-SiO2 based resistive switching memory for Neuromorphic computing. • Implement STDP learning for spiking neural networks using PCMO based memristor. National Institute of Science and Technology, Orissa Undergraduate Research Student (Final Year Project) [Aug'09-Jun'10] • Simulate AlGaN// based HEMT device with the help of Synopsys TCAD tool. • Demonstrate high carriers' mobility can be achieved because of 2-DEG formation at GaN/Si interface.

PUBLICATIONS ▪ Journal Articles: 1. Navnidhi K. Upadhyay, Thomas Blum, A. V. Ievlev, Miaofang Chi, J. J. Yang, "Anatomy of Lithium Based Memristor devices" (manuscript under preparation) 2. Navnidhi K. Upadhyay, Eric S. Muckley, Shiva Asapu, Miaofang Chi, Ilia n. Ivanov, J. J. Yang, "Environmental Gating Effect on Memristive Devices" (manuscript under preparation) 3. Navnidhi K. Upadhyay, Zhongrui Wang, Wenhao Song, J. J. Yang, "Artificial Olfactory System Based on Memristor device array," (manuscript under preparation) 4. Navnidhi K. Upadhyay, Thomas Blum, Petro Maksymovych, Nickolay V Lavrik, Noraica Davila, Jordan A. Katine, A. V. Ievlev, Miaofang Chi, Qiangfei Xia, and J. Joshua Yang, "Engineering Tunnel Selector to Achieve Record Nonlinearity of 106 for 3D Stackable, high-density Passive Cross-bar Array," (Submitted) 5. Navnidhi K. Upadhyay, Sun, Peng , Saumil Joshi, Rivu Midya, Xumeng , Zhongrui Wang, Hao Jiang, Jung Ho Yoon, Mingyi Rao, Miaofang Chi, Huaqiang , Qiangfei Xia, and J. Joshua Yang, "A Memristor With Low Switching Current And Voltage For 1S1R Integration And Array Operation," Advanced Electronic Materials, (2020). 6. Jung Ho Yoon, Jiaming Zhang, Peng Lin, Navnidhi Upadhyay, Peng , Yuzi , Qiangfei Xia, and J. Joshua Yang. "A Low‐Current and Analog Memristor with Ru as Mobile Species," Advanced Materials, (2020). 7. Peng Lin, Can Li, Zhongrui Wang, Yunning Li, Hao Jiang, Wenhao Song, Mingyi Rao, Ye , Navnidhi K Upadhyay, Mark Barnell, Qing Wu, J. Joshua Yang, Qiangfei Xia "Three-Dimensional Memristor Circuits as Complex Neural Networks," Nature Electronics (2020). 8. Xumeng Zhang, Ye Zhuo, Qing Luo, Zuheng Wu, Rivu Midya, Zhongrui Wang, Wenhao Song, Rui Wang, Navnidhi Upadhyay, Yilin , Fatemeh Kiani, Mingyi Rao, Yang Yang, Qiangfei Xia, Liu, Ming Liu, and J. Joshua Yang, " artificial spiking afferent nerve based on Mott memristors for neuro-robotics," Nature Communications, (2020) 9. Navnidhi K. Upadhyay, Hao Jiang, Zhongrui Wang, Shiva Asapu, Qiangfei Xia, J. Joshua Yang, "Emerging Memory Devices for Neuromorphic Computing," Advanced Materials Technologies, (2019). 10. Rivu Midya, Zhongrui Wang, Shiva Asapu, Saumil Joshi, Yunning Li, Ye Zhuo, Wenhao Song, Hao Jiang, Navnidhi Upadhyay, Mingyi Rao, Peng Lin, Can Li, Qiangfei Xia, J. Joshua Yang, "Artificial Neural Network (ANN) to Spiking Neural Network (SNN) converters based on diffusive memristors," Advanced Electronic Materials, (2019). 11. Rivu Midya, Zhongrui Wang, Shiva Asapu, Xumeng Zhang, Mingyi Rao, Wenhao Song, Ye Zhuo, Navnidhi Upadhyay, Qiangfei Xia, and J. Joshua Yang. "Reservoir computing using diffusive memristors." Advanced Intelligent Systems, (2019). 12. Z. Wang, S. Joshi, S. Savel' ev, W. Song, R. Midya, Y. Li, M. Rao, P. Yan, S. Asapu, Y. Zhuo, H. Jiang, P. Lin, C. Li, J.H. Yoon, N.K. Upadhyay, J. Zhang, M. Hu, J.P. Strachan, M. Barnell, Q. Wu, H. Wu, R.S. Williams, Q. Xia, J.J. Yang, "Fully memristive neural networks for pattern classification with unsupervised learning," Nature Electronics, (2018). 13. Wang, Z., Rao, M., Han, J.W., Zhang, J., Lin, P., Li, Y., Li, C., Song, W., Asapu, S., Midya, R. and Zhuo, Y., H. Jiang, J.H. Yoon, N.K. Upadhyay, R.S. Williams, Q. Xia, J.J. Yang 2018. "Capacitive neural network with neuro- transistors," Nature communications, (2018). 14. Navnidhi K. Upadhyay, Saumil Joshi, and J. Joshua Yang. "Synaptic electronics and neuromorphic computing," Science China Information Sciences, (2016). ▪ Book Chapters: 15. Rivu Midya, Zhongrui Wang, Mingyi Rao, Navnidhi K Upadhyay, and J. Joshua Yang. "RRAM/memristor for computing," In Advances in Non-Volatile Memory and Storage Technology, pp. 539-583. Woodhead Publishing, (2019). ▪ Conference/Talks/Posters/Seminars 16. Navnidhi K. Upadhyay Eric S. Muckley, Shiva Asapu, Miaofang Chi, Ilia n. Ivanov, J. J. Yang, "Environmental Effects on Memristors," CNMS town hall, 2020, Oak Ridge, USA. 17. Navnidhi K. Upadhyay, Thomas Blum, A. V. Ievlev, Miaofang Chi, J. J. Yang, "Lithium dynamics in Memristive devices," CNMS town hall, 2019, Oak Ridge, USA. 18. X. Zhang, Z. Wang, W. Song, R. Midya, Y. Zhuo, R.Wang, M. Rao, N. K. Upadhyay, Q. Xia, J. Joshua Yang, Qi Liu, and M. Liu "Experimental Demonstration of Conversion-based SNNs with 1T1R Mott Neurons for Neuromorphic Inference," IEDM, 2019, San Francisco, USA. 19. Navnidhi K. Upadhyay, Zhongrui Wang, Mingyi Rao, Rivu Midya, Wenhao Song, Shiva Asapu, Ye Zhuo, Qiangfei Xia, and J. Joshua Yang, "Memristor Crossbar Array for Computing," Non-Volatile Memory Technology Symposium (NVMTS), 2019, Durham, USA. 20. Li, Can, Zhongrui Wang, Saumil Joshi, Navnidhi K. Upadhyay, Rivu Midya, Mingyi Rao, Qiangfei Xia, and J. Joshua Yang. "Unconventional Computing with Memristive Devices and Arrays," AiMES 2018 Meeting, Cancun, Mexico. 21. N. Panwar, D. Kumar, N. K. Upadhyay, P. Arya, U. Ganguly, and Bipin Rajendran. "Memristive synaptic plasticity in Pr0.7Ca0.3MnO3 RRAM by bio-mimetic programming," 72nd Device Research Conference. IEEE, 2014, Santa Barbara, California, USA.

(Full publication list available at https://scholar.google.com/citations?user=bkiEZjkAAAAJ&hl=en)

WORK EXPERIENCE University of Massachusetts, Amherst [Aug’15-Jan’21] Research Assistant, Amherst, USA Oak Ridge National Laboratory [Sep’19-April’20] Research intern, Oak Ridge, USA ARM Embedded Technologies [Jul’15-Aug’15] Design Engineer, Bengaluru, India Indian Space Research Organisation (ISRO) [Sep’10–Jul’13] Scientist/Engineer, ISRO Propulsion Complex-Mahendragiri, Tamilnadu, India

ACADEMIC ACHIEVEMENTS ▪ “Emerging Memory Devices for Neuromorphic Computing” has been chosen as Editor's pick and is featured in the 'Best of Advanced Materials Technologies 2019' virtual issue. [Jun 2020] ▪ “Emerging Memory Devices for Neuromorphic Computing” was one of the top downloaded papers in recent publication history of Advanced Materials Technologies. [Apr 2020] ▪ Recipient of ORISE Fellowship, ORNL, Oak Ridge [2019-20] ▪ Best Poster award in NVMTS-2019, Durham, North Carolina [2019] ▪ Travel grant award for attending NVMTS’19 conference [2019] ▪ Travel grant award for attending AiMES’18 conference. [2018] ▪ Selected to participate in MIT-IITB Health-Tech workshop-2014 held at IIT Bombay. [2014] ▪ Selected to participate in Master Class in nanoscale physics held at TIFR Mumbai. [6-10, Oct' 14] ▪ Recipient of the government of India's MHRD Scholarship. [2013–15] ▪ All India Rank 48 among 256135 candidates appeared in GATE exam organized by IIT. [2013] ▪ Achieved outstanding Employee performance rating throughout the tenure at ISRO. [2010-2013] ▪ All India Rank 79 among 25000 aspirants in Indian Space Research Organisation's Recruitment Exam. [2010] ▪ Winner of technical quiz in Sankalp'09, a National Level Technical Symposium held at NIST, Berhampur. [2008] ▪ Awarded the Institute merit scholarship for exceptional academic performance during B.Tech. [2007] ▪ Recipient of Teaching Assistantship in 3rd semester, B. Tech based on academic performance. [Autumn'07]

TECHNICAL SKILLS ▪ Characterization Tool Proficiency: Electrical measurement using parameter analyzer, probe stations based measurements, Scanning Electron Microscopy, Focused-ion beam (FIB), Ellipsometry, Profilometer, Atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), EIS measurement, Cyclic Voltammetry, TEM in-situ electrical biasing, TEM sample prep. etc. ▪ Fabrication Tool Proficiency: RF and DC Sputtering, ALD, E-beam Lithography (EBL), Optical Lithography, Electron Beam Evaporation, Rapid thermal anneal, Chemical Vapour Deposition (CVD), Reactive ion etch, Wet chemical etching, etc. (Have more than 7 years of experience working in class 100/1000 Clean Room at different labs (Conte Nanotechnology lab at UMass Amherst, CNMS Cleanroom at ORNL and CEN at IIT Bombay) ▪ Programming Proficiency: C/C++, Python, Visual Basic, Intel 8085/8086, VHDL, LATEX ▪ Application software Proficiency: MATLAB, Sentaurus TCAD, Cadence-Virtuoso, NG-SPICE, Tanner (layout tool), LTSpice, Xilinx-ISE, Xyce

COURSES TAKEN Machine Learning, Neuromorphic Engineering, Behavioral & Cognitive Neuroscience, VLSI Design, Physics of Semiconductor Devices, Nanoelectronics, VLSI Technologies, Analog & Digital Circuits, Introduction to Numerical Computing with Python, Algorithms, Embedded systems Design, Probability & Random Processes

TEACHING EXPERIENCE ▪ Research Mentor ➢ Mentored an RSU student for implementing Machine Learning Algorithm on a memristor array. [Summer'18] ▪ Teaching Assistant, Department of EE, IIT Bombay ➢ Experimental and Measurement Laboratory: Assisted students in performing experiments, evaluated them by taking viva voce. [Autumn'13] ➢ Digital Circuits Lab: Helped students in completing projects assess their performance by taking viva-voce [Spring,2014] ➢ Neuromorphic Engineering: Helped student with the course projects and graded the exams [Autumn'14] ▪ Teaching Assistant, Department of ECE, NIST Berhampur ➢ Basic Electronics: Conducted interactive tutorials and additional help sessions for detailed discussions and clearing doubts for 50+ Students. [Autumn, 2007] ▪ Student Instructor in summer training course, EDA for VLSI/ASIC Design held at NIST Berhampur.[Jun'09–Jul '09] ➢ Held tutorial sessions and provided hands-on training on Xilinx ISE, Tanner Tool, PSPICE to a batch of 100+ students. ➢ Prepared and evaluated assignments and quizzes questions.

PROFESSIONAL SERVICES ▪ Journal Reviewer: Nature NPG Asia Material, Nature Scientific Report, IOP Journal of Physics: Complexity, Applied physics A, IEEE EDL, IET Electronic Letters, Advanced Material, ACS nano, Advanced Electronic Materials, IEEE Design & Test of Computers ▪ Organization Committee member: International Conference on VLSI Design'14, ▪ Organization Committee member: Sankalp-a national level Techno-Management symposium'09 ▪ Student Member: AAAS (American Association for the Advancement of Science), IEEE (Institute of Electrical and Electronics Engineers), ECS (The Electrochemical Society)

REFERENCES

▪ Available upon request