Introduction to VLSI Design

VLSI stands for

• Very limited scale integration

• Very large scale integration

• very long scale integration

• none of these

In CMOS logic circuit the p-MOS transistor acts as:

• Pull down network

• Pull up network

• Load

• Short to ground

When both nMOS and pMOS transistors of CMOS logic design are in OFF condition, the output is

• 1 or Vdd or HIGH state

• 0 or ground or LOW state

• High impedance or floating(Z)

• None of the mentioned

Silicon oxide is patterned on a substrate using:

• physical lithography

• Photolithography

• Chemical lithography

• Mechanical lithography

CMOS technology is used in developing

• microprocessors

• microcontrollers

• digital logic circuits

• all of the mentioned

In CMOS fabrication, nMOS and pMOS are integrated in same substrate

• true

• false

Which type of CMOS circuits are good and better?

• p well

• n well

• all of the mentioned

• none of the mentioned

nMOS fabrication process is carried out in

• thin wafer of a single crystal

• thin wafer of multiple crystals

• thick wafer of a single crystal

• thick wafer of multiple crystals

The width of n-diffusion and p-diffusion layer should be

• 3λ

• 2λ

• λ

• 4λ

What should be the width of metal 1 and metal 2 layers?

• 3λ, 3λ

• 2λ, 3λ

• 3λ, 4λ

• 4λ, 3λ