VLSI - Essential concepts and detailed interview guide

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11.5 часов курса
О курсе

This course is about Basic concepts of VLSI System Design. The course is designed in the form of micro-videos, which delivers content in the form of Info-Graphics. It is designed for self-learning and will help to polish the Industrial skills in VLSI World. This course will cover end-to-end description from basic Device Physics to Chip Design.The introductory video series focuses on the basic elemental physics and electrical characteristics of MOS Transistor.

This course covers most topics in brief and not in detail, just to revise topics below interviews. For detailed and thorough discussion of each topic, you need to go to individual courses.

All the best for your interviews and happy learning

Physical Design Flow Overview
Floor-Planning Steps
Netlist Binding And Placement Optimization
Clock Net Shielding
Route - DRC Clean - Parasitics Extraction - Final STA
Utilization Factor And Aspect Ratio
Concept of Pre-placed Cells
Power Planning
Pin Placement And Logical Cell Placement Blockage
Netlist Binding And Placement
  • Individuals having Basic Knowledge of Electrical and Electronics
Что Вы изучите?
  • To bridge the gap between Understanding and Application of Knowledge, this leads to innovation
Kunal Ghosh
Kunal Ghosh
Digital and Sign-off expert at VLSI System Design(VSD)

Ghosh is the Director and co-founder of VLSI System Design (VSD) Corp.
Pvt. Ltd. Prior to launching VSD in 2017, Kunal held
several technical leadership positions at Qualcomm's Test-chip business unit. He joined Qualcomm in 2010. He led the Physical design and STA flow development of 28nm, 16nm test-chips. At 2013, he joined Cadence as Lead Sales Application engineer for Tempus STA tool.
Kunal holds a Masters degree in Electrical Engineering from Indian
Institute of Technology (IIT), Bombay, India and specialized in VLSI
Design & Nanotechnology.

Hands on with Technology @

1) MSM (mobile station mode chips) - MSM chips are used for CDMA modulation/demodulation. It consists of DSP’s and microprocessors for running applications such as web-browsing, video conferencing, multimedia services, etc.

2) Memory test chips - Memory test chips are used to validate functionality of 28nm custom/compiler memory as well as characterize their timing, power and yield.

3) DDR-PHY test chips - DDR-PHY test chips are basically tested for high speed data transfer

4) Timing and physical design Flow development for 130nm MOSFET technology node till 16nm FinFET technology node.

5) “IR aware STA” and “Low power STA”

6) Analyzed STA engine behavior for design size up to 850 million instance count


1) Research Assistant to Prof. Richard Pinto and Prof. Anil Kottantharayil on “Sub-100nm optimization using Electron Beam Lithography”, which intended to optimize RAITH-150TWO Electron Beam Lithography tool and the process conditions to attain minimum resolution, use the mix-and-match capabilities of the tool for sub-100nm MOSFET fabrication and generate mask plates for feature sizes above 500nm.

2) Research Assistant to with Prof. Madhav Desai, to characterize RTL, generated from C-to-RTL AHIR compiler, in terms of power, performance and area. This was done by passing RTL, generated from AHIR compiler, through standard ASIC tool chain like synthesis and place & route. The resulting netlist out of PNR was characterized using standard software


1) “A C-to-RTL Flow as an Energy Efficient Alternative to Embedded Processors in Digital Systems” submitted in the conference “13th Euromicro Conference on Digital System Design, Architectures, Methods and Tools, DSD 2010, 1-3 September 2010, Lille, France

2) Concurrent + Distributed MMMC STA for 'N' views

3) Signoff Timing and Leakage Optimization On 18M Instance Count Design With 8000 Clocks and Replicated Modules Using Master Clone Methodology With EDI Cockpit

4) Placement-aware ECO Methodology - No Slacking on Slack

Tips on order in which you need to learn VLSI and become a CHAMPION:

If I would had been you, I would had started with Physical Design and Physical design webinar course where I understand the entire flow first, then would have moved to CTS-1 and CTS-2 to look into details of how the clock is been built.

Then, as you all know how crosstalk impacts functioning at lower nodes, I would gone for Signal Integrity course to understand impacts of scaling and fix them. Once I do that, I would want to know how to analyze performance of my design and I would have gone for STA-1, STA-2  and Timing ECO webinar courses, respectively

Once you STA, there’s an internal curiosity which rises, and wants us to understand, what goes inside timing analysis at transistor level. To full-fill that, I would had taken Circuit design and SPICE simulations Part 1 and Part 2 courses.

And finally, to understand pre-placed cells, IP’s and STA in even more detail, I would have taken custom layout course and Library Characterization course

All of above needs to be implemented using a CAD tool and needs to be done faster, for which I would have written TCL or perl scripts. So for that, I would start to learn TCL-Part1 and TCL-Part2 courses, at very beginning or in middle

Finally, if I want to learn RTL and synthesis, from specifications to layout, RISC-V ISA course will teach the best way to define specs for a complex system like microprocessor 

Connect with me for more guidance !!

Hope you enjoy the session best of luck for future !!

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