## CMOS Digital VLSI for Beginners

### What you’ll 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

High performance CMOS logic: Dynamic, DOMINO logic, NORA logic, Pass transistor and CMOS transmission gate based logic design

SPICE simulation of MOS and CMOS circuits

### Requirements

There is no essential experience required to take this course. Desirable: Basic idea about semiconductor fundamentals and digital electronics .

### Description

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.

### Overview

Section 1: Introduction to VLSI Design

Lecture 1 Introduction

Section 2: MOS Transistor: Theory and Operation

Lecture 2 Two Terminal MOS Structure and Band diagram

Lecture 3 MOS structure under Applied Bias Voltage

Lecture 4 Threshold Voltage

Lecture 5 Modeling of Drain Current of MOSFET

Lecture 6 Channel Length Modulation

Lecture 7 MOSFET Scaling_Constant Field Scaling

Lecture 8 Constant Voltage Scaling

Lecture 9 Short Channel Effects

Section 3: MOS Inverter: DC and Transient Operation

Lecture 10 Introduction to MOS Inverter

Lecture 11 Resistive Load Inverter

Lecture 12 MOS Inverter with Active load

Lecture 13 CMOS Inverter

Lecture 14 Transient operation and Delay time definition

Lecture 15 Current Averaging Method for delay calculation

Lecture 16 Differential Equation Method for Delay Estimation

Lecture 17 Super Buffer Design:Part-1

Lecture 18 Super Buffer Design:Part-2

Lecture 19 Super Buffer Design:Part-3

Lecture 20 Power Dissipation in CMOS Circuits

Section 4: CMOS Logic Design

Lecture 21 Basic Building blocks of CMOS logic

Lecture 22 CMOS NAND and NOR Gate

Lecture 23 Design of Complex CMOS Logic

Lecture 24 Layout and Design Rules

Lecture 25 Stick Diagram of Inverter, NAND and NOR Gate

Section 5: High Performance CMOS Logic

Lecture 26 Introduction to Dynamic CMOS Logic

Lecture 27 Cascading Problem in Dynamic Logic

Lecture 28 DOMINO Logic

Lecture 29 Charge Sharing Problem

Lecture 30 NP Domino (NORA) Logic

Section 6: Switch-based Logic

Lecture 31 Pass Transistor based logic design

Lecture 32 Logic Design Example using Pass Transistor

Lecture 33 Complementary Pass Transistor Logic (CPL)

Lecture 34 CMOS Transmission Gate Logic

Section 7: SPICE Simulation of MOSFET and CMOS Circuits

Lecture 35 Introduction to SPICE

Lecture 36 NMOS Characteristics Simulation

Lecture 37 Resistive Load Inverter Simulation

Lecture 38 Active MOSFET load Inverter Simulation

Lecture 39 CMOS Inverter DC and Transient characteristics Simulation

Lecture 40 Sample NgSPICE Program code used in this chapter

Beginners taking preparation for VLSI related job, examination and regular academic curriculum.

#### Course Information:

Udemy | English | 4h 13m | 898.48 MB

Created by: Subir Maity

You Can See More Courses in the Teaching & Academics >> Greetings from CourseDown.com