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The use of "$NUMBER" when placing like cells

deacon19062deacon19062
in General

When placing like cells multiple times, klayout uses "cellName$1,2,3..." within the hierarchy for identifying the cell.
Is there a methodology that I can use to prevent this naming convention?
I have scripts that need to preserve the hierarchy.
Example: I have a cell called bump_gnd_CDS_*. Instances of cell bump_gnd_CDS_* have cell bump_sig_CDS_* as a subcell. My script modifies bump_sig_CDS_* but if bump_gnd_CDS_* is flat then it will not get the needed modifications.
Thank you,
Deacon

Comments

  • MatthiasMatthias

    Hi @deacon19062,

    The number is added to make the cell name unique. GDS has a strict requirement of unique cell names - you cannot use the same name for multiple cells.

    So the "$n" number is not related to hierarchy. It simply happens to be added if you create cells temporarily without caring to use a unique name.

    Matthias

  • deacon19062deacon19062

    Ok. Thanks for that information.

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