finding single via

Discussion in 'Cadence' started by prabhat.prem, Aug 4, 2009.

  1. prabhat.prem

    prabhat.prem Guest

    Hi
    i am trying find single via in a layout through script or drc rule in
    assura.
    Please let me know if anyone having the same.
    Also can this be converted to double via through skill without
    creating DRC Error.
    Thanks
    Prabhat
     
    prabhat.prem, Aug 4, 2009
    #1
  2. prabhat.prem

    Sylvain Guest

    Hi,
    How far a via from another you consider that it is lonely ?

    Sylvain
     
    Sylvain, Aug 4, 2009
    #2
  3. prabhat.prem

    Riad KACED Guest

    Hi Prabhat, Hi Sylvain,

    To be entirely precise, lonely vias and single vias are not quite the
    same thing.
    From a manufacturing point of view (mainly Lithography, etching and
    CMP) a lonely via might be double, triple or more as long as it does
    not fulfill a certain density in a given area. Via density is critical
    in nano processes.

    Anyway, your question still makes sens, just wanted to highlight the
    difference between a single via and a lonely via.
    I'd rather go for a Assura/Calibre solution rather than a Skill
    solution. In fact, MGC does provide tools for this kind of tasks, why
    don't you use them ?

    Cheers,
    Riad.
     
    Riad KACED, Aug 4, 2009
    #3
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