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RC extraction problem

sainadh

Hi,

When i am trying to do RCX EXtraction i am getting this kind of error. please help me to resolve this issue.


capgen Capgen results will be written to directory: /home/students/sirmf/sri/aksh
*WARNING* at "capgen": process layer 'FOX' maps to one or more extraction
layers that do not appear in the lvsfile.
*WARNING* at "capgen": Substrate layer 'FOX' will be automatically generated
during extraction due to incomplete p2lvs mapping. This may lead to
unintended results.
*ERROR* at "capgen": -cap_ground_layer 'psubstrate' not defined in LVS file
quitting.
Forking: /public/cadence/ASSURA41/tools/assura/bin/64bit/capgen -techdir /home/students/sirmf/sri/gpdk045_v_4_0/assura/../qrc/typical -lvs /home/students/sirmf/sri/aksh.xcn -p2lvs /home/students/sirmf/sri/gpdk045_v_4_0/assura/../qrc/typical/p2lvsfile -p poly_conn,allGate,Oxide -canonical_res_caps -length_units meters -exclude_gate_res -cap_ground_layer psubstrate /home/students/sirmf/sri/aksh
*WARNING* Bad return status from RCX script generator. 0x100


Library: testing
Cell: aksh
View: av_extracted
Host is
RsfFile is /home/students/sirmf/sri/rcx.aksh.rsf
LogFile is /home/students/sirmf/sri/rcx.aksh.log
cmd is /public/cadence/ASSURA41/tools/assura/bin/assura /home/students/sirmf/sri/rcx.aksh.rsf -cdslib /home/students/sirmf/sri/cds.lib
Starting the ipc:20 Run: IPC Id 6436: pid "Assura RCX".


*Error* The Assura RCX run "aksh" failed!
The log File is at: /home/students/sirmf/sri/rcx.aksh.log

  • Hi srisainadh ikkurthy

    When a process (e.g. LVS, parasitic extraction, etc) stops unexpectedly, the first thing to do is to look for "errors" and "warnings" in the log file. This is the cause of your problem:

    *ERROR* at "capgen": -cap_ground_layer 'psubstrate' not defined in LVS file quitting.

    In QRC form "Extraction" tab, please specify a suitable ground net name which can be found in your layout (e.g. VSS, GND, etc).

    For your information, you are using Assura-QRC flow. This means that you are running Assura LVS followed by QRC parasitic extraction. : )

    Best regards
    Quek

  • Hi Quek,

    Thanks for quick reply, I don't have any errors in LVS process and even specified the Ground terminal properly in extraction tab. please check the attachment of Extraction tab .

     

    *ERROR* at "capgen": -cap_ground_layer 'psubstrate' not defined in LVS file quitting.

    *WARNING* at "capgen": process layer 'FOX' maps to one or more extraction  layers that do not appear in the lvsfile.

    *WARNING* at "capgen": Substrate layer 'FOX' will be automatically generated  during extraction due to incomplete p2lvs mapping. This may lead to unintended results.

     

     

  • Hi srisainadh ikkurthy

    It seems that there might be something wrong with your current gpdk045 package. The error message is tell you that the Quantus package uses an LVS layer named "psubstrate" but this layer cannot be found in the "lvsfile" which was generated from the LVS deck.

    Would you please download the latest gpdk045 package from COS website? I think it should resolve the error. I do have "psubstrate" layer in both my Assura and PVS LVS decks in gpdk045 package.


    Best regards
    Quek

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