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rcnetwork_* in noiseSummary

The noiseSummary from SpectreX .noise simulation shows many contributors as /rcnetwkrin_*. These instances probably are converted from the R and C parasitics in the spf file.

To optimize the noise from rcnetwork_*, need to know which devices in the spf file they are converted from.

- Is there any way to find the mapping of /rcnetwork_*?

- Or is there any way to make noiseSummary report the original R, C elements in the spf file?

Below is part of the noiseSummary showing contribution from /rcnetwork_* and the option use in .noise simulation.

Thank you for any reply.

NoiseSummary:

Device % Of Total Inp Ref Noise Param Noise Contribution

/rcnetwork_ 91 4.71 2.41197e-08 total 7.66259e-06
rn 7.66259e-06
/rcnetwork_ 90 4.58 2.35393e-08 total 7.45786e-06
rn 7.45786e-06
/rcnetwork_ 8 4.04 4.35474e-07 total 6.5794e-06
rn 6.5794e-06
/rcnetwork_1006 2.12 1.08516e-08 total 3.45633e-06
rn 3.45633e-06

Command in spectre input file for noise simulation:

noise ( vop von ) noise start=100k stop=60G dec=157 \
iprobe=Itb_stim.Vac_stim annotate=status

-Bill

Andrew Beckett over 1 year ago

Bill,

See What are the *_RCNet_* devices in the output noise summary/results after the post layout simulation?

Andrew
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BillatBRCM over 1 year ago in reply to Andrew Beckett

Thank you Andrew,

I found the parasitic devices corresponding to the rcnetwork_*. Then document is very helpful. Appreciate your help!!

Bill
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