5EE6.3 INTRODUCTION TO VLSI

Unit-1

Introduction to MOS Technology:

Basic MOS transistors, Enhancement Mode transistor

action, Depletion Mode transistor action, NMOS and CMOS fabrication.

Unit-2

Basic Electrical Properties of MOS Circuits:

I

versus V

relationship, Aspects of

ds

ds

threshold voltage, Transistor Transconductance g

. The nMOS inverter, Pull up to Pull-down

m

ratio for a NMOS Inverter and CMOS Inverter (B

/B

Unit-3

CMOS Logic Circuits:

The inverter, Combinational Logic, NAND Gate NOR gate,

Compound Gates, 2 input CMOS Multiplexer, Memory latches and registers, Transmission

Gate, Gate delays, CMOS-Gate Transistor sizing, Power dissipation.

Unit-4

Basic Physical Design of Simple Gates and Layout Issues:

Layout issues for inverter,

Layout for NAND and NOR Gates, Complex Logic gates Layout, Layout optimization for

performance.

Unit-5  Introduction to VHDL, Verilog & other design tools. VHDL Code for simple Logic gates, flip-