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Marking nets in cadence showing shorts

anandmohan

HI ,

When I am trying to mark nets in cadence to verify routing i am am seeing shorts. Cadence version is IC6.1.7-64b-500.7 . Marking the nets is also highlighting other unconnected nets, but LVS is going clean so there is no physical connection b/w them. Is there any way to solve this issue or any work around.

Regards

Anand Mohan

Parents
  • Hi Anand,

    MarkNet is not an extraction tool. It wont detect/extract devices. So being LVS clean does not have any meaning for MarkNet. Like I said, MarkNet nly knows the layeer stack: Poly Cut M1 Via1 M2 Via2 M3 ....... If you click on a M1 shape it will mark all M1 shapes touched by that one, will look for all the touched Via1 shapes, mark them, will look for all M2 shapes touched by these Via1 shapes ..... you get the idea. It wont stop at hierarchies or devices unless you define stop conditions or disable the vias.

    Kind regards,
    Marc
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  • Hi Anand,

    MarkNet is not an extraction tool. It wont detect/extract devices. So being LVS clean does not have any meaning for MarkNet. Like I said, MarkNet nly knows the layeer stack: Poly Cut M1 Via1 M2 Via2 M3 ....... If you click on a M1 shape it will mark all M1 shapes touched by that one, will look for all the touched Via1 shapes, mark them, will look for all M2 shapes touched by these Via1 shapes ..... you get the idea. It wont stop at hierarchies or devices unless you define stop conditions or disable the vias.

    Kind regards,
    Marc
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