Welcome to electrical and electronics engineering discussion website, Please login or register to continue.

27 views
by
what are different three main IC Technologies? discuss the advantages of each of them.

Your answer

Thanks for your contribution. Feel free to answer this question. Please avoid short answer. Your answer is most welcome. Be genuine.

Upload image or document:

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
Are you a robot ? (Y = Yes / N = No)
To avoid this verification in future, please log in or register.

1 Answer

0 votes
by
 
Best answer

The three different IC technologies are 

1.Full custom VLSI

2.Semi-custom ASIC

3.Programmable Logic Devices (PLD)


The advantages of each of them are as follows :

1. Full custom VLSI

  • All layers of full custom IC is optimised and will, therefore, get excellent performance.
  • Full custom VLSI devices are optimised to perform fix function.
  • Design, testing, and fabrication take too much efforts.
  • The development costs of full custom VLSI is very high.
  • Full custom VLSI is a type of digital logic devices.
  • Full custom VLSI are hardwired.
  • All the logic cells and mask layers of full custom VLSI is customised.
  • Full custom IC is small in size.
  • Full custom IC consume low power.
  • Full custom IC have excellent performance.
  • Microprocessors and RAM used in computers are the examples of full custom VLSI.

2. Semi-custom ASIC

  • In semi-custom ASIC the lower level is fully or partially built.
  • The upper level is not built the upper level is finish by the designer. 
  • The performance of semi-custom ASIC is good.
  • The size of semi-custom ASIC is good.
  • The NRE cost of semi-custom cost of semi-custom ASIC is low then full custom IC.
  • Semi-custom ASIC uses two technology one is standard cell and second is Mask Programmable gate array (MPGA).
  • Programming of semi-custom ASIC is done at fabrication level.
  • Semi-custom ASIC is advantageous for highest performance in short time.
  • Semi-custom ASIC reduces the cost and design time.

3. Programmable Logic Devices (PLD)

  • All layers of Programmable Logic devices are built already.
  • The designer can directly purchase and IC.
  • Programmable Logic devices have low NRE cost.
  • Programmable Logic devices are available instantly.
  • In PLD there is not customised logic cell or mask layer.


Welcome to Q&A site for electrical and electronics engineering discussion for diploma, B.E./B.Tech, M.E./M.Tech, & PhD study.
If you have a new question please ask in English.
If you want to help this community answer these questions.

...