Showing posts with label factors for scan design. Show all posts
Showing posts with label factors for scan design. Show all posts

Wednesday, 12 February 2020

What are the deciding factors for a scan desgin

If u ask to do DFT implementation on a design, then what factors do we need consider mainly. While doing the DFT implementation designer need to have some knowledge on tester which will be used for testing IC.

  • Number of channels available on the tester
  • Memory size of the channel
  • Number of scan pins
  • The operational frquecny of the tester

This above facotrs must be considered while implementing the DFT on the design

Physical Cells :TAP CELLS, TIE CELLS, ENDCAP CELLS, DECAP CELLS

Tap Cells (Well Taps) :  These library cells connect the power and ground connections to the substrate and n­wells, respectively.  By plac...