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Need to perform boolean operation on layers

RAGHU2634

Hi ,

I want to access shapes in lower hierarchies in layout and do boolean operation to generate layer in current level. Is there any way I can have access to shapes in lower levels.

(it helps in fixing softcheck during lvs verification easily.)

Thanks,

Raghu

  • Hi Raghu,

    The abe (Advanced Boolean Engine) functions that were introduced in IC617/ICADV122 are what you want here. If you're going to use them though, please make sure you're using at least IC617/ICADV123 ISR9 or later; there were some issues in early versions which were fixed with an incompatible change to how they're used (the incompatible change happened sometime earlier than ISR9, but since ISR9 is when they started to be supported in PCells, that's a good "earliest version" to pick).

    BTW, the "abe" is nothing to do with my usual "ab" prefix - it's a coincidence that it looks like my name!

    Andrew.

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