Size and complexity of ICs

ICs are invented in the year 1940’s at Texas Instruments and Fairchild Semicounductors and their size and complexity has increased widely. The following are the different sizes of the Integrated Circuits:

  • SSI – Small Scale Integration (these ICs consists of 3 to 30 gates/chip or 100 transistors/chip).
  • MSI – Medium Scale Integration (these ICs consists of 30 to 300 gates/chip or 100 to 1000 transistors/chip).
  • LSI – Large Scale Integration (these ICs consists of 300 to 3000 gates/chip or 1000 to 20,000 transistors/chip).
  • VLSI – Very Large Scale Integration (these ICs consists of more than 3000 gates/chip or 20,000 to 10,00,000 transistors/chip).
  • ULSI – Ultra Large Scale Integration (these ICs consists of more than 10to 107 transistors/chip).
  • GSI – Gaint Scale Integration (these ICs consists of more than 107 transistors/chip).

     

Leave a Reply