Primetime and synthesized netlist

[elec_guy]

Hello,

My question is quite basic. I have a synthesized netlist that uses say the TT, 85C corner. Now, if I want to run timing/power across different corners and temperatures using Primetime, how does the tool do it using the TT,85 synthesized netlist?

Thanks in advance.

 

[OhaAmo]

Every cell should have different views, including one for each corner.
When running timing/power analysis with a different corner, the tool will take the corresponding corner view for its calculations.

 

[elec_guy]

Thanks OhaAmo.
I have a couple of follow-on questions:
a) Where are these "views" located? From where does Primetime pick them up?
b) For example, say I have an inverter std cell:
INVD2(TT,85C library). What information would it's "view" have for various corners etc?

 

[D Saurabh]

(a) These views are typically in the form of .lib files which are loaded through the .synopsys_pt.setup files. Hence for each corner, you should have a .lib characterized at those PVT conditions and specified in your link_library to get loaded into Primetime for analysis in that corner.
(b) The .lib contains a lot of information for a particular cell. For e.g. for a INV - the pins, pin transition times, output capacitance, timing arcs and delay information, power information and so on. You can look up some information at the liberty site : https://opensourceliberty.org/

 

[elec_guy]

Thanks Saurabh, that was helpful.