Hi Subgold,

I think there is a problem somewhere as this behavior does not really make sense from a physical point of view. There could be a problem with either you models cards or your Spectre version (very unlikely).

The standard deviation of the process itslef is usually broader than the mismatch as the latter is a local variation.

Best is to cross-check your model cards and share this problem with your PDK provider or with Cadence customer support.

I usually don't ask people to post their model cards as this is confidential information.

Cheers,
Riad.