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Quantus QRC issue

HY20250821344

Hi

I am now working on the QRC & voltus-fi EMIR flow. And I find some issue when I work on the QRC extraction. 

Environment details:

PDK: Samsung 90nm

Virtuoso version: IC23.1

QRC version: 21.1.1-s329

Calibre version: v2023.3_14.8

My flow is: Calibre LVS -> Calibre Query -> QRC -> ADE simulation with EMIR option

I have tested the flow with a simple INV and all the flow can run successfully. Now I tested it on a Bandgap and the QRC extraction failed when extracted the poly resistor. I attached the error as following:

#==========================================================#
# Reconnect RES devices
#==========================================

createLink opppcres_0term opppcres_0dev_0tw-48_rvia
createLink ppwell opppcres_0dev_0tw-48_ppwell_rvia
reconnect -V -xdspf -I'#' -se2 rwires.res -n NET -r \

        opppcres_0dev_0tw-48.respppcres_0dev_0tw-48.resr \
        opppcres_0dev_0tw-48 \

        opppcres_0dev_0tw-48_rvia,opppcres_0dev_0tw-48_ppwell_rvia
ERROR (RECONN-157025): 'opppcres_0dev_0tw-48_rvia' is not a flat edge file

Any suggestion on how to fix it? Thanks.

  • Andrew Beckett

    This might help: ERROR (RECONN-157025): layer is not a flat edge file (you might want to contact the foundry though to ensure everything is synchronised).

    Andrew

  • HY20250821344
    in reply to Andrew Beckett

    Hi Andrew,

    Thanks for the help. It's now OK.

    Just summarize for someone who may face the same issue in the future. 

    Reason: opppcres is only defined in the LVS rules but  not defined in the lvsfile(in the QRC tech file folder).

    Solution: add the opppcres definition in the lvsfile and QRC can run successfully.  

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