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pex extraction wrong mult and fingers on MOS

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.matteo

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Hi,
I'm using calibre pex to extract a single transistor:
W=1, L=0.06, NF=2, M=1.

The result is that in calibreview I'm getting two transistors:
W=1, L=0.06, NF=2, M=1
W=1, L=0.06, NF=2, M=1

I noticed that the number of transistors I get is the same of the NF. The netlist however shows:
W=1, L=0.06, NF=2, M=0.5
W=1, L=0.06, NF=2, M=0.5

Can you help me out with this? How can I tell PEX to extract MOS in the right way?

thanks
 

does anybody know about this?
 

is there a way to tell calibre to write the correct dimensions?
for example, what about modifying the calibre cellmap in the calibre view setup window or the "reset properties" field?
 

Hi, I suggest you switch to spctre or hspice instead. Calibreview is prone to these bugs. I've encountered similar problems before: https://www.edaboard.com/threads/168656/#post710199
Attactched is a tutorial written by erikl about post simulation from a spectre netlist, hope that would help.
 

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  • Extracted_parasitic_simulation_using_Calibre.pdf
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