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Establish connectivity on a text purpose layer to traverse hierarchy.

snee

We have several layouts where the designers did not place pins on their nets, but rather tagged them with text layers to pass LVS. We're looking for a way to use the existing text layers to propagate connectivity through hierarchy, without having to edit the underlying layout and place pins. Also, we do not want to simply generate the pins on the top level cell with leHiCreatePinsFromLabels(), but would rather modify the text layer to inherit the properties of a pin.

Does anyone know of a method to do this?

Thanks.

Parents
  • Standard cells were created without pins. Nets in those cells were tagged with text layers representing the net names to pass LVS.
    Those cells are then used in other top level cells but connectivity does not propagate from lower level standard cell.
    The user has asked to allow text layers to act like pin layers so that connectivity can propagate up throughout hierarchy.
    A major requirement is that user does not want to edit lower level standard cells to add pins.
Reply
  • Standard cells were created without pins. Nets in those cells were tagged with text layers representing the net names to pass LVS.
    Those cells are then used in other top level cells but connectivity does not propagate from lower level standard cell.
    The user has asked to allow text layers to act like pin layers so that connectivity can propagate up throughout hierarchy.
    A major requirement is that user does not want to edit lower level standard cells to add pins.
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