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 VCAR single vias on pins 

Last post Tue, Nov 4 2008 8:55 AM by stuso. 1 replies.
Started by stuso 03 Nov 2008 05:21 AM. Topic has 1 replies and 1323 views
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  • Mon, Nov 3 2008 5:21 AM

    • stuso
    • Top 100 Contributor
    • Joined on Mon, Nov 3 2008
    • Posts 77
    • Points 1,315
    VCAR single vias on pins Reply

    Hi guys, please feel free to point me the correct forum, this is a custom layout question but i can't find a more appropriate place to post it yet:

    -------------------------------------------------------------------------------------------------------------------------------------------

    I'm finding that on a given VCAR routed net that at its end point where is meets the pin, if there is a via directly on the pin it is single (1x1) even though i have specified 2x1 vias for all nets. If i trace such a net there are multiple vias(2x1) at all other metal jumps. Here is my .do commands:

    unselect all nets
    select all nets
    define (class myNets (selected))
    unselect all nets
    circuit class myNets (use_via (use_array M2_M1 1 2) (use_array M3_M2 1 2) (use_array M4_M3 1 2))
    rule ic (stack_via any_overlap)

    Thanks in advance

    Stu 

     

    • Post Points: 5
  • Tue, Nov 4 2008 8:55 AM

    • stuso
    • Top 100 Contributor
    • Joined on Mon, Nov 3 2008
    • Posts 77
    • Points 1,315
    Re: VCAR single vias on pins Reply

    The best solution i can find so far is to widen pins to at least the size of of a 2x2 via, this seems to do the trick.  

    • Post Points: 5
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Started by stuso at 03 Nov 2008 05:21 AM. Topic has 1 replies.