Transcript VLSI and ULSI - Computer Science

VLSI and ULSI
Team 4:
Justen Harrison
Olutoni Oluyide
An Vu
4/28/2015
Very Large Scale Integration
(VLSI)
● Process of designing and integrating thousands to millions of transistors
and their supporting parts into a single chip.
● Microprocessing and memory have benefited from the sudden expansion
of performance and its density.
● No longer pertains only to transistors, but can now include digital and
non-digital devices.
Ultra Large Scale Integration
(ULSI)
● Process of designing and integrating millions to billions of transistors and
their supporting parts into a single chip.
● A period in the progression of transistor integration.
● Specifies the goal of creating and maintaining low-cost, high performance,
and large electronic circuits.
● Heavy power usage and a decrease in voltage supply sparked debate for
“Power wall”.
History of Circuit Design Methodology
•SSI
•MSI
•LSI
•VLSI
•USLI
Comparison Between VLSI and ULSI
● VLSI
- more than 10,000
components per chip
- 1970s
- more popular
- successor to (LSI), (MSI)
and (SSI) technologies
● ULSI
- more than 1 million
transistors
- 1980s
- not used a lot
- successor to (LSI) and
(VLSI) technologies
differences are vague
Advantages and Disadvantages of VLSI/ULSI
● Advantages of VLSI
(when compared to of-the-shelf
SSI/MSI/LSI)
- smaller size
- lower cost
- lower power
- higher reliability
- more functionality
● Disadvantages of VLSI
(when compared to prefabricated media like FPGAs)
- long design and fabrication
time
- higher risk to project
Sources
● https://www.safaribooksonline.com/library/view/power-integrityanalysis/9780137047956/ch02.html
● http://www.eolss.net/sample-chapters/c05/e6-195-04.pdf
● “History of VLSI - VLSI Implementation Media”, C. E. Stroud, Dept. of
ECE, Auburn Univ., August 2014
● http://homepages.nildram.co.uk/~wylie/ICs/monolith.htm
● http://pages.hmc.edu/harris/cmosvlsi/4e/index.html