Design and Implementation of VLSI Systems(EN0160)lecture03

Sherief RedaDivision of Engineering, Brown University

Spring 2008

[sources: Weste/Addison Wesley – Rabaey Pearson]

Recap

n+

p

GateSource Drain

bulk Si

SiO2

Polysilicon

n+

SiO2

n

GateSource Drain

bulk Si

Polysilicon

p+ p+

nMOS pMOS

3-input NANDs

Series-Parallel Combinations

What are the transistor schematics of the NOR gate?

And-Or-Inverter (AOI) gate

Transmission gate

Tri-state inverter

Multiplexer (MUX)

Latch design

Flip-flop (edge triggered) design

Summary

• Introduction to VLSI systems and the semiconductor industry

• Basic overview of pn junctions and MOS transistors

• Designing digital logic gates using transistors

• HW1 is out and the due date is Wednesday February 6