what's the difference between coupled c and lumped c ?

[dabing]

coupled c and lumped c

Dear all,
what's the difference between coupled c and lumped c while post simulation?

Thanks!

 

[Alan_Nesta]

coupled c and lumped c

xrc use lumped-c only extract net to vdd or gnd para-cap,
use coupled-c, net-to-net para-cap will be extracted also.

 

[yibinhsieh]

Re: coupled c and lumped c

In high accuracy requirement, i will coupled C. But it needs more time for simulations.

Therefore, you can judge which type of paracitics you need.