Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
VLSI & ULSI Ben Jibilian, Daniel Louis, Jae Lee, Yonel Brown History ● Jack Kilby introduced the first integrated circuit in 1958 which allowed multiple transistors to be placed on a single chip ● Businesses such as Texas Instruments, where Kilby was employed, arose which resulted in the improvement of more transistors on chips ● In the 60’s, microelectronics evolved from 10 transistor chips to 100 transistor chips in just one decade (SSI to MSI) ● Up to about 1000 transistors could be placed on a single chip by the mid-70’s and that number would continue to grow exponentially (LSI) TI Advertisement (1954) History ● The number of transistors on a single chip was said to double about every 2 years ● VLSI came about in the mid-80’s when single chips bypassed 1000 transistor capacity ● ULSI can be referred to when talking about chips that can have more than 1 million transistors ● There are no major differences between VLSI and ULSI What is VLSI VLSI is a type of integrated circuit design. Integrate Circuit = An IC is a collection of electronic components – resistors, transistors, capacitors, etc. – all stuffed into a tiny chip, and connected together to achieve a common goal. [6] Small (SSI) < 100 components and about 10 gates Medium (MSI)< 500 components and more than 10 but less than 100 gates. Large (LSI) < 300000 components and more than 100 gates Very Large (VLSI) > 300000 components per chip [3] Advantages of IC and VLSI [7] 1. The size of circuits is reduced 2. Devices are more economical 3. Increases operating speed 4. Less power required than discreete circuits 5. Reliability increases with integration size. VLSI Design [4] Consists primarily of Front End and Back End design. Design Steps: Problem Specification Architecture Definition Functional Design Logic Design Circuit Design Physical Design Packaging Moore’s Law ● (Gordon) Moore’s law projects the numbers of transistors on a chip would double every 18/24 months. ● With Moore’s law integrated chips can reach a low cost, improve performance, and increase functionality ● As time goes on and Morre’s law holds more and more chips are using ULSI. Moores Law Graph [4] ULSI ● Ultra large-scale integration is the process of embedding millions of transistors on one microchip. ● ULSI is considered the successor to LSI and VLSI. ● Designed to provide the greatest possible computational power from the smallest form of microchip . Sources 1.https://prezi.com/9t5uhcwi6run/vlsivery-large-scale-integration/ 2.http://cs.stanford.edu/people/eroberts/cs181/projects/201011/TechnologicalSingularity/pageviewa478.html?file=forfeasibility.html 3. http://www.daenotes.com/electronics/devices-circuits/integrated-circuits-ic 4. http://www.engineersgarage.com/articles/vlsi-design-future?page=1 5. http://www.radiomuseum.org/forum/first_silicon_transistors.html 6. https://learn.sparkfun.com/tutorials/integrated-circuits 7.http://www.techulator.com/resources/13398-What-is-VLSI-Technology.aspx