Pradnya Chabbi
About me
I graduated as an Electronics Engineer from Shivaji University, Kolhapur, Maharashtra in 2015. I then moved to Gandhinagar, Gujarat to pursue my masters in Energy Science from Pandit Deendayal Energy University. I did my master's thesis in Polymer solar cells from Bhabha Atomic Research Centre, Mumbai wherein I developed deep interest in microfabrication techniques. To explore more about microfabrication, I joined as a Senior Technical Assistant at MEMS and NEMS Prototyping Facility (Now merged with IIT Bombay Nanofabrication Facility). I worked extensively on optimizing newly arrived microfabrication tools like Deep Reactive Ion etching (SAMCO), Multi target RF magnetron Sputter (AJA International), Photolithography (Karl SUSS), LPCVD (SVCS) and others. I further worked at the same facility in design and characterization of MEMS cantilevers, Microheaters, Inter Digitated Electrodes, Oxide diaphragms. I was then promoted to process technologist where I managed a team of 12 equipment operators and handled day today process operations at IIT Bombay Nanofabrication Facility with close collaboration with the utilities and the equipment managers. I also helped with user requests for accessing the lab facilities, contamination clearance and feasibility. After working for 3.5 years in microfabrication and characterization, I moved to BITS Pilani, Rajasthan in January 2021 to pursue my Doctoral Studies in MEMS devices.
I like to travel, explore new places and cultures and read (Mostly fiction). I am a trained swimmer and occasionally like to engage in Indian Classical Dance forms as well.
I can fluently read, write and speak English, Kannada, Marathi and Hindi.
PhD thesis at BITS Pilani (Since January 2021)
Design and development of Multi-axis MEMS gyroscopes
Guide- Dr. Venkatesh KP Rao, Department of Mechanical Engineering, BITS Pilani, Rajasthan
Co-Guide- Dr. Sujan Yenuganti, Department of Electrical and Electronics Engineering, BITS Pilani, Rajasthan
Structural design of MEMS gyroscopes
Finite Element Simulations
Coupled Field Simulations
Damping Analysis
Mathematical modelling in MATLAB
Microfabrication - Thin film deposition, Photolithography, Deep Reactive Ion Etching, Wafer Dicing, Wire Bonding
Micro-characterization - SEM, Profilometry, AFM, LDV, IV CV characterization
Skills - COMSOL, Ansys Mechanical, MATLAB, kLayout, AutoCAD, Fusion360, Arduino
Courses Assisted - Engineering Graphics (AutoCAD), Automation and Control (Introduction to Arduino), Computer Assisted Design (Fusion360), Casting Forming and Welding.
Publications
Freestanding polypyrrole films as counter electrode for low cost dye sensitized solar cells, AIP Conference Proceedings, vol. 1832, no. 1, p. 080040. AIP Publishing LLC, 2017.
Experimental And Numerical Studies on Mechanical Resonance of Piezoelectric Hemispherical Resonator Gyroscope," 2021 IEEE International Conference on Electronics, Computing and Communication Technologies (CONECCT), Bangalore, India, 2021, pp. 1-5.
Design and Analysis of Single Drive Tri-Axis MEMS Gyroscope. In Microactuators, Microsensors and Micromechanisms: MAMM 2022, pp. 172-182. Cham: Springer International Publishing, 2022.
Design and Simulation of tactical grade Capacitive based MEMS Vibratory Ring Gyroscope 2023 IEEE Applied Sensing Conference (APSCON), Bengaluru, India, 2023, pp. 1-3
Awards and Recognitions
1st Prize - Suksham Samrachana, MEMS Innovation Challenge - 2021, organized by Semiconductor Technology and Applied Research Centre (STARC), a unit of Society for Integrated Circuit Technology and Applied Research (SITAR), DRDO, Bangalore, India