what are tt, ss, ff corners?

[m0na]

hi all,
I don't know really what are tt,ff,ss corners? and how we can analysis our design in different corners with hspice?
would anyone help me?
thank u

 

[dick_freebird]

Re: what are tt,ss,ff corners?

NMOS and PMOS - TypicalTypical, FastFast, SlowSlow.
These are the minimal "digital" corner cases and you can
expect a reasonable representation of delay, static leakage,
DC pin parametrics and so on.

These corners would be implemented as either individual
model decks, or parameter-sets applied to a core model
set.

Whether you have access to HSPICE-compatible models,
I have no idea. You'd be wanting to ask your target foundry
about that.

 

[m0na]

Re: what are tt,ss,ff corners?

Thanks a lot dick_freebird.
Regards