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how to make one parameter shared by bunch of stretch handles?

zssfred

In the official docs, cadence shows how to make stretchable handles for the metals on the source and drain of a MOS.

But it needs to define separate parameters for each metal of source and drain. It is simple but tedious. Especially, in multi-finger mode, it is impossible to define the required parameters because the metals on source and drain are variables.

There should be a data structure to tackle these issues. And it is already a common practice in lots of foundries' PDKs.

Anyone knows the detailed algorithm?

Thanks.

Fred

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