Tonoy Chowdhury

About Tonoy Chowdhury

I am a highly analytical and results-driven Material Scientist and Failure Analysis…

Experience

1. Failure Analysis Staff Engineer

   STMicroelectronics

   Sep 2022 — Present · Coppell, TX, US

   Conducted in-depth physical failure analysis and fault isolation for failing parts and field returns using advanced instrumentation, including: Scanning Electron Microscopy (SEM), Energy-dispersive X-ray spectroscopy (EDX), Focused Ion Beam (FIB), nanomanipulators, 2D/3D X-ray, Scanning Acoustic Microscopy (C-SAM), Laser Scanning Microscopy (LSM), and Optical Microscopy.• Engineered an innovative repackaging process for MEMS devices that kept both the ASIC and MEMS components electrically active, significantly improving the efficiency and accuracy of fault isolation compared to prior ASIC-only methods.• Developed a specialized MEMS Gyro deliding process to enable critical internal inspection for particle contamination and physical damage, ensuring accurate failure diagnosis.• Created and implemented numerous 3D X-ray imaging techniques to enhance the visualization and precise localization of complex internal faults.• Established a novel methodology for mass extraction from MEMS devices using FIB-attached manipulators, advancing capabilities for micro-scale materials analysis.• Led the investigation into the root cause of corrosion on MEMS devices by thoroughly characterizing materials and manufacturing processes, providing critical data for process correction and reliability improvements.

Education

• University of Alaska Fairbanks

  Master's of Science, Mechanical Engineering

  2016 — 2017

• University of North Texas

  Doctor of Philosophy - PhD, Mechanical Engineering

  2017 — 2021

• Military Institute of Science and Technology (MIST)

  Bachelor of Science (BSc), Aeronautical Engineering (Minor in Avionics)