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typical/worst/nominal corners of Parasitics (Read 2172 times)

skas20

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typical/worst/nominal corners of Parasitics
Aug 02^nd, 2007, 9:00pm

Hi,

I have seen most of the time that any FAB, provides minimum three decks for parasitic extraction.
they are mostly typical,nominal and worst. (we receive different decks for all)

Could someone help me to understand what is the difference between them?
They differ in modelling of the parasitics? How do they model the difference?

Regards,
SK.

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ayowchen New Member Offline Posts: 3	Re: typical/worst/nominal corners of Parasitics Reply #1 - Aug 4^th, 2007, 8:22am Which foundry are you using? I don't find such corner cases in TSMC,SMIC...etc. I think the difference is from the following variation. 1.) Metal thickness 2.) Dielectrics layer thickness The rule deck can be generated by a field solver by the above specs.
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skas20 New Member Offline Posts: 9	Re: typical/worst/nominal corners of Parasitics Reply #2 - Aug 11^th, 2007, 1:37am Ok. Thanks. I am using Samsung PDK. (It has these three decks.) Do anybody have any material on HOW a parasitic extraction tool solves the 3D layers and comes with a netlist? -- SK.
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