Senior Research Fellow @ IIT Roorkee
PhD in Electronics and Communication Engineering
SRAM Memory Design In-Memory Computation VLSI Design Engineer
I am a PhD researcher at IIT Roorkee, specializing in the design and hardware validation of high-performance In-Memory Computing (IMC) architectures for energy-efficient AI acceleration.
I am privileged to be working under the guidance of Prof. Bishnu Prasad Das.
My expertise includes developing time-domain computation techniques using specialized voltage-controlled and PVT-insensitive delay cells integrated with SRAM arrays to perform XAC and MAC operations, fundamental to BNN and CNN.
A core objective is to create IMC architectures that are linear, high-throughput, area-efficient, and energy-efficient. I verify performance using MNIST and CIFAR-10 datasets.
I possess end-to-end expertise across the entire VLSI design cycle, including architecture definition, custom circuit design, and full-chip physical implementation.
I have successfully led three silicon tapeouts in the TSMC 65 nm node for applications including neural networks (BNN and CNN) and the SHA-3 cryptographic algorithm.
I am proficient with industry-standard EDA tools, frameworks, and languages, including:
Recognized with the Best Digital IC Tapeout Award twice at the VLSID conference in 2025 and 2026.
Received grants from SERB and IEEE CAS for international travel, alongside multiple conference fellowships in India.
Contributed as a Teaching Assistant for Digital System Design on Coursera and transcribed courses for NPTEL.
I have authored three papers published in IEEE international conferences and journals, with an additional paper currently in queue and under review.
| Degree | Institution | Year | CGPA/Percentage |
|---|---|---|---|
| Ph.D. | Indian Institute of Technology, Roorkee | 2026 | 8.429 |
| M.Tech | Punjab Engineering College (Deemed to Be University), Chandigarh | 2020 | 8.740 |
| B.Tech | Guru Gobind Singh College of Modern Technology, Kharar | 2014 | 82.60% |
| Class XII | Central Public Senior Secondary School, Ghoman (PSEB) | 2010 | 70.44% |
| Class X | S.G.H.K. Public School, Ghoman (PSEB) | 2008 | 72.70% |
TD-IMC for XAC and Multibit MAC Operations
Introduced voltage-controlled delay cell (VCDC) for XNOR/MAC operations. No DAC/ADC required.
Binary Neural Networks Accelerator
XNOR-and-delay cell (XDC) with PVT-tolerant PXDC architecture. Improved linearity & signal margin.
128x128 6T-SRAM Array
Ring oscillator based architecture. No DAC/ADC/TDC required. Serial/parallel row access.
High Gain Amplifier Design
Designed two-stage operational amplifier with high gain and low power.
Single-tail & Double-tail Analysis
Analyzed comparators for reduced delay and power dissipation.
C-DAC Mohali
AT89C51 microcontroller, 20x4 LCD, portable quiz system.
In-Memory Computation for Cryptography
5-input XOR, fused XOR-Rotation, RCS scheme. Under fabrication (May 2025).
IEEE International Symposium on Circuits and Systems (ISCAS), Singapore, 2024
doi: 10.1109/ISCAS58744.2024.10558168
IEEE Transactions on Nanotechnology, 2023
doi: 10.1109/TNANO.2023.3269946
IEEE International Symposium on Smart Electronic Systems (iSES), Ahmedabad, 2023
doi: 10.1109/iSES58672.2023.000
IEEE Transactions on Very Large Scale Integration (VLSI) Systems (Submitted)
ID TVLSI-00772-2025
VLSID 2025, Bengaluru
VLSID 2026
ISCAS 2024, Singapore
Digital System Design (Coursera)
VLSI Physical Design With Timing Analysis
Score 645 | AIR 1517
Score 446 | AIR 4438
Score 598 | AIR 2667
Multiple VLSI Conferences
IEEE ISCAS 2024, Singapore - Presented research on PVT-Insensitive IMC
IEEE iSES 2023, Ahmedabad - Presented ring oscillator IMC architecture
VLSI Design 2024 & 2021 Conferences
IEEE CAS Workshop "Semiconductors for All", New Delhi 2024
January 2014 - July 2014
Developed an embedded-based quiz game using AT89C51 microcontroller, 20x4 LCD, and 74573 MUX. Area-efficient, low power, portable design suitable for educational institutions.
a_singh@ece.iitr.ac.in
+91 9501286656
IIT Roorkee, Roorkee, Uttarakhand, India
Professor, Department of ECE
Indian Institute of Technology, Roorkee
bishnu.das@ece.iitr.ac.in
+91-1332-28479