Does Foundry ET specifications need to be adhered to ?

[packet]

Foundry ET spec.

Foundry usually provide the design rule, ET specification….
such as MOS parameters Vth, Idsat, Isub, W/L unit..

I want to know those parameters must be cared on
designing memory and I/O pad??

May I calculate the MOS sink/drive current without use HSPICE?

Thansk a lot

 

[philewar]

Foundry ET spec.

ET spec is the test value while EP is model value