gds2 problem

Discussion in 'Cadence' started by Kuan Zhou, Jul 8, 2004.

  1. Kuan Zhou

    Kuan Zhou Guest

    Hi,
    We generated the gds2 file for our chip. But when we stream in the gds2
    file, we found the layout becomes much larger. The layout actually doesn't
    change but it has a huge extra empty space abut to it. After doing DRC and
    delete the marker, this empty space is gone. We don't know what causes
    the restored layout to have this empty space. Does anyone have the same
    problem before?

    Thank you very much!

    sincerely
     
    Kuan Zhou, Jul 8, 2004
    #1
  2. Kuan Zhou

    Richard Griffith Guest


    Changed layer? Is the "changed" layer normally visible in your design?
    If not switch to the LSW->edit and turn on the changed layer.

    Also any other invisible warning layers. Your stream out deck should
    actually be filtering out these and other non-design layers so they have
    no chance of coming back in check the PIPO log for a list of the layers
    actually streamed out. You should be checking the layer numbers against
    the foundry list in any case.
     
    Richard Griffith, Jul 8, 2004
    #2
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