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Via count details

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    Hi,
       I am trying to get the via count details by using some of the scripts (userRptViaStats.tcl)  provided by cadence in gift directory ( installation area), but i am getting a different  count when i use the script when compared to the count that i have in the log file.
    If any one has some information of how to get the details of via count using any command or using any script, please let me know.


thanks
deepak.


Originally posted in cdnusers.org by deepak
Parents

  • For the benefit of others that might happen upon this thread, I thought to mention a couple of other public commands that are available to query via statistics on a routed design.

    First is "reportRoute". It reports via statistics like this:

    Total length: 6.990e+04um, number of vias: 14605
    M1(H) length: 2.278e+03um, number of vias: 6394
    M2(V) length: 2.323e+04um, number of vias: 5930
    M3(H) length: 2.430e+04um, number of vias: 1768
    M4(V) length: 1.271e+04um, number of vias: 433
    M5(H) length: 5.234e+03um, number of vias: 80
    M6(V) length: 2.153e+03um

    Note that as of 7.1, reportRoute and userRptViaStats.tcl do *not* break out multi-cut vias in their reporting.

    Another command to consider, especially if you're interested in multi-cut via usage is the "reportYield" command. reportYield generates information about yield (ie, Design For Manufacturing) and includes information about multi-cut via usage:

    Via
    ===
    Layer | Number of Vias | Cost | Total
    | 1-cut 2-cut Array | 1-cut 2-cut Array | Cost
    via12 | 1.6100e+03 4.7840e+03 0.0000e+00 | 0.0000e+00 0.0000e+00 0.0000e+00 | 0.0000e+00
    via23 | 1.4300e+02 5.7870e+03 0.0000e+00 | 0.0000e+00 0.0000e+00 0.0000e+00 | 0.0000e+00
    via34 | 3.0000e+00 1.7650e+03 0.0000e+00 | 0.0000e+00 0.0000e+00 0.0000e+00 | 0.0000e+00
    via45 | 0.0000e+00 4.3300e+02 0.0000e+00 | 0.0000e+00 0.0000e+00 0.0000e+00 | 0.0000e+00
    via56 | 0.0000e+00 8.0000e+01 0.0000e+00 | 0.0000e+00 0.0000e+00 0.0000e+00 | 0.0000e+00
    -------|----------------------------------|----------------------------------|-----------
    total | 1.7560e+03 1.2849e+04 0.0000e+00 | 0.0000e+00 0.0000e+00 0.0000e+00 | 0.0000e+00

    Be aware that reportYield requires a yield technology file. If you're primarily interested in using reportYield to obtain multi-cut via information, you can create a quick/default yield technology file like this:

    reportYield -createYieldFile myYield.file
    reportYield -yld myYield.file
    ->write .dfm.rpt to your current directory which contains the via statistics

    Be aware that reportYield requires a GXL license.

    Thanks,
    Bob


    Originally posted in cdnusers.org by BobD
Reply

  • For the benefit of others that might happen upon this thread, I thought to mention a couple of other public commands that are available to query via statistics on a routed design.

    First is "reportRoute". It reports via statistics like this:

    Total length: 6.990e+04um, number of vias: 14605
    M1(H) length: 2.278e+03um, number of vias: 6394
    M2(V) length: 2.323e+04um, number of vias: 5930
    M3(H) length: 2.430e+04um, number of vias: 1768
    M4(V) length: 1.271e+04um, number of vias: 433
    M5(H) length: 5.234e+03um, number of vias: 80
    M6(V) length: 2.153e+03um

    Note that as of 7.1, reportRoute and userRptViaStats.tcl do *not* break out multi-cut vias in their reporting.

    Another command to consider, especially if you're interested in multi-cut via usage is the "reportYield" command. reportYield generates information about yield (ie, Design For Manufacturing) and includes information about multi-cut via usage:

    Via
    ===
    Layer | Number of Vias | Cost | Total
    | 1-cut 2-cut Array | 1-cut 2-cut Array | Cost
    via12 | 1.6100e+03 4.7840e+03 0.0000e+00 | 0.0000e+00 0.0000e+00 0.0000e+00 | 0.0000e+00
    via23 | 1.4300e+02 5.7870e+03 0.0000e+00 | 0.0000e+00 0.0000e+00 0.0000e+00 | 0.0000e+00
    via34 | 3.0000e+00 1.7650e+03 0.0000e+00 | 0.0000e+00 0.0000e+00 0.0000e+00 | 0.0000e+00
    via45 | 0.0000e+00 4.3300e+02 0.0000e+00 | 0.0000e+00 0.0000e+00 0.0000e+00 | 0.0000e+00
    via56 | 0.0000e+00 8.0000e+01 0.0000e+00 | 0.0000e+00 0.0000e+00 0.0000e+00 | 0.0000e+00
    -------|----------------------------------|----------------------------------|-----------
    total | 1.7560e+03 1.2849e+04 0.0000e+00 | 0.0000e+00 0.0000e+00 0.0000e+00 | 0.0000e+00

    Be aware that reportYield requires a yield technology file. If you're primarily interested in using reportYield to obtain multi-cut via information, you can create a quick/default yield technology file like this:

    reportYield -createYieldFile myYield.file
    reportYield -yld myYield.file
    ->write .dfm.rpt to your current directory which contains the via statistics

    Be aware that reportYield requires a GXL license.

    Thanks,
    Bob


    Originally posted in cdnusers.org by BobD
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