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Design and Implementation

of VLSI Systems

Lecture 01

Thuan Nguyen

Faculty of Electronics and Telecommunications,

University of Science, VNU HCMUS

Spring 20121

Ref: Sherief Reda, Division of Engineering, Brown University

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CONTENT

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Introduction1

VLSI Design Flow2

Class logistics3

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CONTENT

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Introduction1

VLSI Design Flow2

Class logistics3

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INTRODUCTION

A VLSI (Very Large Scale Integration) systemintegrates millions of electronic components in a

small area (few mm2 few cm2).

Class objective: Learn how to design efficient VLSI

systems that implement required functionalities.

What are the design metrics?

Circuit Speed / Performance

Power consumption

Design Area Yield

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WHAT ARE VLSI SYSTEMS COMPOSED OF?

pMOS

nMOS

1.Transistors

CMOS logic gates

+

2. Wires

=

Circuits

design

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HOW DOES AN IC LOOK LIKE FROM THE

INSIDE?

transistors

wires

R. Noyce J. Kilby

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TECHNOLOGY SCALING

Moores Law.The number of transistors in an

integrated circuit doubles every 2 years.

Quad corefrom Intel:

~600 milliontransistors in

286 mm2

If a pond lily doubles everyday and it takes 30 days to completely

cover a pond, on what day will the pond be 1/2 covered?

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FEATURE SIZES

Human Hair

~75 m

0.18 m180 nmfeature

.

.

~40,000 (65-nm node) transistors could fit on cross-section

[C. Keast]

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WHY SHOULD YOU LEARN ABOUT VLSI

SYSTEMS?

They are ubiquitous in our daily lives

(computers/iPods/TVs/Cars//etc).

This course can help you understand the devices you use.

o The market for VLSI systems (and semiconductors) is

worth $350 billion dollars.

This course can help you get a decent job after graduation (or

you can even start your own company).

o VLSI design and analysis is fun!

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BIGG

EST

S

EMICON

DUCTOR

COMP

ANIES

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CONTENT

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Introduction1

VLSI Design Flow2

Class logistics3

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2.1 INTRODUCTION

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Video 1

Video 2

http://videos/Intel%20-%20%20From%20Sand%20to%20Silicon_%20The%20Making%20of%20a%20Chip%20_%20De%20Arena%20a%20Silicio_%20C%C3%B3mo%20se%20Fabrica%20un%20Chip(360p_H.264-AAC).mp4http://videos/From%20sand%20to%20chip%20-%20How%20a%20CPU%20is%20made(240p_H.264-AAC).mp4http://videos/From%20sand%20to%20chip%20-%20How%20a%20CPU%20is%20made(240p_H.264-AAC).mp4http://videos/Intel%20-%20%20From%20Sand%20to%20Silicon_%20The%20Making%20of%20a%20Chip%20_%20De%20Arena%20a%20Silicio_%20C%C3%B3mo%20se%20Fabrica%20un%20Chip(360p_H.264-AAC).mp4

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2. writespecifications

1. idea (need)

3. designsystem 4. analyze/

modelsystem

ifsatisfactory

5. Fabrication

6. test / workas modeled?

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* APPLICATIONS/ IDEAS

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* SPECIFICATIONS Instruction set

Interface (I/O pins)Organization of the

system

Functionality of each

unit in the and how

it to communicate to

other unit

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* DESIGNAND ANALYSIS

Design development is facilitated using Computer-Aided Design(CAD) tools

compilation/synthesis

VHDL / Verilog / SystemC

device layoutfind wire routesmask layout patterns

design schematics

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* FABRICATION

tapeout

mask writer masks

wafer

printing

die

dice

mask layout patterns

test andpackaging

chip17

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* EVALUATEDESIGNANDCOMPARETOMODEL

board

Does the chip function as it is

supposed to be?

Does it work at desired clock

frequency? (can we overclock?)

Check signal integrity Power consumption

Input/output behavior

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2.2VLSIDESIGN

FLOW

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OTTOM-UP(FUL

LCUSTO

M)

D

ESIGNM

ETHOLOGY

20

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OP-DOW

N(STAN

DARDC

ELL)

D

ESIGNM

ETHOLOGY

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FROMM

ASKLAY

OUTTO

FABRICA

TEDCH

IP

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2.3 SIMPLIFIED VLSI DESIGN FLOW

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CONTENT

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Introduction1

VLSI Design Flow2

Class logistics3

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PREREQUISITE

Students must pass those courses:

Basic Electronics

Analog/Digital Circuit Design

Physics of Semiconductor Devices Programmable Logic Design

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WHAT ARE WE GOING TO COVER IN

THIS CLASS?

Overview of VLSI CMOS fabrication MOS transistor theory

VLSI Layout design

Circuit analysis and performance estimation

Computer-aided design and analysis tools Combinational and sequential circuit design

Memory systems

Big, nice design project

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GRADING

Maximum score: 160 points

20 points Exercise in class

20 points Homework

Written by English + 50% final points/homework

20 points Midterm exam 30 points Design Project

Presentation 10 points Slides must be written in English

Report 20 points Written by English + 50% final point

20 points small essay

30 points Final exam 36

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TEXTBOOKS

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TEXTBOOKS (CONT.)

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TEXTBOOKS (CONT.)

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CONTACT INFORMATION

Nguyn Xun Thun

Phone: 0906 834 817

Email: thuannguyen.teaching@gmail.com

Site: http://www.thuanxuannguyen.tk/

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mailto:thuannguyen.teaching@gmail.comhttp://www.thuanxuannguyen.tk/http://www.thuanxuannguyen.tk/mailto:thuannguyen.teaching@gmail.com

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Q & A

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