CMOS Digital VLSI for Beginners

CMOS Digital VLSI for Beginners

Integrated circuits commonly termed 'chip' is the backbone of today's electronic gadget. Starting from smartphones to PC and IoT devices and home appliances everywhere there are some applications of VLSI chips.  The semiconductor industry's very-large-scale-integration (VLSI) technology has seen by far the most growth over the past thirty years or so. The ongoing reduction of transistor size to ever smaller dimensions is what drives the continual advancement of VLSI technology. The advantages of miniaturization—higher packing densities, faster circuit speeds, and lower power dissipation—have played a crucial role in the evolutionary progress that has produced the computers, wireless devices, and communication systems of today, which outperform their forerunners in terms of performance and cost per function while also having a significantly smaller physical footprint. In terms of output and employment, the electronics sector is currently one of the largest in many countries.

The main objective of this course is to explore the device fundamentals that govern the behavior of CMOS transistors and VLSI circuits.

• This course is about the fundamentals of VLSI circuits designed using MOS transistors. Since MOSFET is the primary design unit for CMOS VLSI, an in-depth analysis of MOSFET characteristics and scaling theory has been elaborately discussed. Detailed discussion about MOS structure with band diagram, MOS transistor threshold voltage, drain current calculation, scaling and short channel effect is given.

• Several solved problems related to Threshold voltage calculation, drain current calculation, and MOSFET parameter extraction from measured data have been provided supporting the theory discussed in the course.

• Basic digital VLSI circuits starting from the MOS inverter with resistive load, active MOS load, and CMOS inverter and its DC and transient analysis, delay, and power dissipation have been covered.

• Moreover, basic CMOS logic design steps with pull-up and pull down network, layout and stick diagram, high-performance CMOS logic such as dynamic CMOS logic, DOMINO logic, NORA logic, pass transistor based and CMOS transmission gate based logic are also covered.

• To get practical ideas about CMOS design, SPICE simulation of several MOS and CMOS circuits has been included for learners.

• In addition to that, in each module, some practice quizzes, resource materials, and assignments with solutions are provided to get a better understanding of the subject.

In depth analysis of MOS transistors and design of basic digital VLSI circuits using MOS transistors

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What you will learn

• Understanding the device physics of MOS transistor, threshold voltage, drain current, MOSFET scaling and short channel effects
• MOS and CMOS inverter characteristics, DC and transient analysis, noise margin and delay calculation. Dynamic, short circuit and leakage power estimation
• CMOS logic design, layout and design rule, NAND, NOR gate, implementation of any Boolean function with min no of transistor

Rating: 5

Level: Beginner Level

Duration: 4 hours

Instructor: Subir Maity