Engineering Tutorials

EE-306-E MOS ICs AND TECHNOLOGY

CLASS WORK : 50
EXAM : 100

UNIT1. REVIEW OF MOS TECHNOLOGY :

Introduction to IC technology, MOS Transistor enhancement mode and depletion mode operations, fabrication of NMOS, CMOS and BiCMOS devices. Equivalent circuit for MOSFET and CMOS.

UNIT2. MOS TRANSISTOR THEORY:

MOS device design equations, MOS transistor, Evaluation aspects of MOS transistor, threshold voltage, MOS transistor transconductance & output conductance, figure of merit, determination of pull-up to pull-down ratio for an n-MOS inverter driven by another n-MOS inverter & by one or more pass transistor, alternative forms of pull-up, CMOS and BiCMOS-inverters. Latch up in CMOS circuitry and BiCMOS Latch up susceptibility.

UNIT3. MOS CIRCUITS AND LOGIC DESIGN :

Basic physical design of simple logic gates using n-MOS, p-MOS and CMOS, CMOS logic gate design considerations, CMOS logic structures, clocking strategies.

UNIT4. CIRCUIT CHARACTERIZATION AND PERFORMANCE ESTIMATION :

Resistance estimation, capacitance estimation, inductance, switching characteristics, CMOS gate transistor sizing, power dissipation.

UNIT5. VLSI FABRICATION :

Crystal growth, wafer preparation, epitaxy, oxidation, lithography, etching, diffusion, dielectric and poly-silicon film deposition, ion implantation, yield and reliability, metalization.

UNIT6. DESIGN EXAMPLE USING CMOS :

Incrementer / decrementer, left/right shift serial/parallel register, comparator for two n-bit number, a two-phase non-overlapping clock generator with buffered output on both phases, design of an event driven element for EDL system

TEXT BOOKS :

1. Introduction to Digital Integrated Circuits : Rabaey,Chandrakasan & Nikolic.

2. Principles of CMOS VLSI Design : Neil H.E. Weste and Kamran Eshraghian; Pearson.

REFERENCE BOOKS :

1. Introduction to Digital Circuits : Rabaey and ……..LPE (PH)

2. …………………………………: S.K.Gandhi.

3. VLSI Technology: S.M. Sze; McGraw-Hill.

4. Integrated Circuits: K.R. Botkar; Khanna

NOTE: Eight questions are to be set –atleast one from each unit. Students have to attempt any five questions

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