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Teddy said:I have already said that few times but in my opinion the difference between the tool itself is of very low importance. One can run faster than the other or is a bit more precise what is hard to decide when you are designing IC and do not have any parasitics there...
To me what is important are the models. If the models are extracted by foundry for SPECTRE I want to use Spectre just because I believe the models more. If they tweak models for HSpiCE or ELDO then those models are probably ok but I think their accuracy is little lower.
Also I would prefer to use the simulator most foundry users are using (usually spectre) just because I believe that if 100s of engineers run simulations that it is probably safe to say that there are no big issues.
But that's just me - I want my design to work and I don't care what tool I am going to use.