ayout parasitic extraction (LPE) simulation

[surianova]

Layout parasitic extraction (LPE) simulation

hi all

When I run layout parasitic extraction (LPE) simulation, is the substrate noise coupling is included or is model in the simulation?

 

[dgnani]

Re: Layout parasitic extraction (LPE) simulation

depends on your extraction rules and extraction tool; in Calibre you can define a substrate resistivity which will extract a substrate parasitic network to allow for substrate crosstalk modeling; the voltage source biasing substrate needs to have a realistic impedance as well.

The above procedure provide transverse substrate resistance, to extract vertical access resistance to the substrate (the resistance of the tie plug) you need a specific extraction rule; if you have ever used IBM RF PDKs their default flow includes substrate contact devices to model this effect even before LPE