Best case and worst case

[chang830]

Hi,
To improve the yield, we need to do the full corner simulations to find the best case and worst cases. But if I want to do a quick verifcations on my circuit, what corner in normally you would use in simulation?

Is it BCS------ff/1.1VDD/-40'C & WCS------ss/0.9VDD/125'C?

Here, the ss,ff means MOS case, 1.1VDD/0.9VDD mean max VDD and Min VDD, -40'C/125'C means MAX and MIN temperature.

Thanks for the comments.

 

[srieda]

I am very wary of the ss case and do not want to continue unless the simulation passes the ss corner...

 

[smartdream]

it is greatly dependent on your circuits and your wanted purposes. but most of cases, it happens as your mentioned.