VLSI Design - Unit 1 Introduction and MOS Electrical Characteristics

1.       Explain the NMOS fabrication process flow with diagrams.

2.        

a.        Explain clearly the n-well CMOS fabrication process with diagrams. (May 2019).

b.       Explain the operation of the V-I characteristics of NMOS

3.       transistor with a diagram and derive the drain to source current

4.       Equation in saturation and resistance region. (May 2019).

5.       Explain the latch-up effect in CMOS inverter

6.        

a.       Explain the fabrication process of Twin Tub.

b.      . Compare CMOS and BI-CMOS technology.

7.        

a.       Explain the operation of CMOS inverter with a diagram.

b.      Discuss MOS design equations role in Ids –Vds relationship curve. (may/June 2018)

8.       Interpret the Pull-up to pull-down ratio (Zpu-Zpd) for an nMOS inverter driven by another nMOS inverter.

9.        

a.       Explain the Various forms of pull-ups

b.       Illustrate the relationship Ids Versus Vds of MOSFET

10.   Design a stick and layout diagram for CMOS inverter and two input n-MOS NAND.