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Layout Cannot Show PDK Instance Graph

ovicovic

1. Configuration: Cadence IC617 + MMSIM151 + Calibre 2015.
2. PDK: TSMC CRN65GP, install using pdkInstall.pl in PDK.
3. I am studying the LNA tutorial given by TSMC docs. The schematic simulation is fine. But in the layout, the Instance in the PDK library is not displayed, just a transparent box, after press "shift + F", the box like this "☒". If I add Instance in my Library, an error will pop up.

CDF: An error occurred when evaluating callback.
    Callback: m->display => iPDK_isSchematic()
    Message: *Error* eval: undefined function - iPDK_isSchematic
CDF: An error occurred when evaluating callback.
    Callback: mismatch->display => iPDK_isSchematic()
    Message: *Error* eval: undefined function - iPDK_isSchematic


4. Open the layout of Cell nmos_rf in the PDK Library, there is a warning prompt, but the layout is displayed normally, with colors and layers.
*WARNING* (DB-220704): The Pcell super master: TSMC_CRN65GP/nmos_rf/layout is not s SKILL super master. The usage of non-SKILL Pcells in virtuoso is not a supported feature.

Parents
  • Andrew Beckett

    My guess is that when installing the PDK (with pdkInstall.pl) you were given a choice of iPDK or the SKILL version - you should pick the SKILL version. If you weren't (I'm not sure of the specifics for this PDK) you should request that from TSMC. Either way, this is not installed properly and you should work with the foundry to resolve it.

    Opening a transistor layout directly doesn't cause the PCell to be evaluated - you're just seeing the saved layout with the default values. Instantiating it though will cause the PCell to be evaluated, and that's failing because of missing functions - which indicates it's not installed properly or you've installed a version not intended to work with Virtuoso.

    Regards,

    Andrew

Reply
  • Andrew Beckett

    My guess is that when installing the PDK (with pdkInstall.pl) you were given a choice of iPDK or the SKILL version - you should pick the SKILL version. If you weren't (I'm not sure of the specifics for this PDK) you should request that from TSMC. Either way, this is not installed properly and you should work with the foundry to resolve it.

    Opening a transistor layout directly doesn't cause the PCell to be evaluated - you're just seeing the saved layout with the default values. Instantiating it though will cause the PCell to be evaluated, and that's failing because of missing functions - which indicates it's not installed properly or you've installed a version not intended to work with Virtuoso.

    Regards,

    Andrew

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