2. Introduction to VLSI Design
•Integrated circuits- Mounting number of
components on a single chip
•Integration levels- Based on the number of
Transistors
•SSI (10)
•MSI (100-1,000)
•LSI (1,000-20,000)
•VLSI (20,000-10,00,000)
•ULSI (10,00,000-1,00,00,000)
•GSI (>1,00,00,000)
•Crossing the boundary requires new design
methodology and new approaches
3. Introduction to VLSI Design
•Very Large Scale Integration
• Outcomes
• Sophisticated electronics devices and
systems
• Low weight ,volume, cost and
power consumption
• Ability to cope with complexity
5. •Fabrication- On a silicon wafer patterning
the components as physical layers
•From the circuit to the product using
various predefined steps
Introduction to VLSI Design
6. Integration is performed in real time by
predefined fabrication technologies
Silicon CMOS/BiCMOS has become the dominant fabrication
technology among all.
Introduction to VLSI Design
7. CMOS ROAD MAP from semiconductor
Industry association
Introduction to VLSI Design
8. • Formulating the problem- analyze
the problem
• Design requirements
• Formulating the design- block
diagram level or algorithmic level
• Simulation- logic verification
• Synthesis- higher level to lower level
diagrams ie component level
VLSI Design Flow
9. • Post synthesis simulation- simulation
at component level
• Technology identification and
Implementation
VLSI Design Flow
