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 IRdrop Analysis 

Last post Fri, Oct 7 2011 12:36 PM by Scrivner. 3 replies.
Started by yazdan 07 Oct 2011 12:32 AM. Topic has 3 replies and 2738 views
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  • Fri, Oct 7 2011 12:32 AM

    • yazdan
    • Top 500 Contributor
    • Joined on Fri, Oct 7 2011
    • Madison, WI
    • Posts 17
    • Points 265
    IRdrop Analysis Reply

    Hi,

     I am going to do both static and dynamic IRdrop analysis. During static analysis I encountered a problem. I need LEF-Tech Map file. Would you please describe me how I can get this file.

    By the way, If you have any tutorial on IRdrop analysis and the flow of this process, I'd appreciate if you would send me.

     

    Thanks

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    • Post Points: 20
  • Fri, Oct 7 2011 12:01 PM

    • Scrivner
    • Top 100 Contributor
    • Joined on Thu, Oct 9 2008
    • Ridgeland, MS
    • Posts 75
    • Points 1,475
    Re: IRdrop Analysis Reply

    Here is an example LEF layer map:

      # LEF layer map: tech lefdef lef
    metal METAL_1 lefdef METAL1
    metal METAL_2 lefdef METAL2
    metal METAL_3 lefdef METAL3
    metal METAL_4 lefdef METAL4
    metal METAL_5 lefdef METAL5
    metal METAL_6 lefdef METAL6

    via CONT lefdef CONT
    via VIA_1 lefdef VIA12
    via VIA_2 lefdef VIA23
    via VIA_3 lefdef VIA34
    via VIA_4 lefdef VIA45
    via VIA_5 lefdef VIA56

    poly POLYCIDE lefdef POLY1

    You can find some documentation on IR Drop Analysis at the following link:

    http://support.cadence.com/wps/mypoc/cos?uri=deeplinkmin:DocumentViewer;src=pubs;q=/soceUG/soceUG9.1.3/power.html#1073877

    • Post Points: 20
  • Fri, Oct 7 2011 12:17 PM

    • yazdan
    • Top 500 Contributor
    • Joined on Fri, Oct 7 2011
    • Madison, WI
    • Posts 17
    • Points 265
    Re: IRdrop Analysis Reply

     Thanks for reply.

    So, you mean I should  write these file manualy by looking at technology file and lef file?

    • Post Points: 20
  • Fri, Oct 7 2011 12:36 PM

    • Scrivner
    • Top 100 Contributor
    • Joined on Thu, Oct 9 2008
    • Ridgeland, MS
    • Posts 75
    • Points 1,475
    Re: IRdrop Analysis Reply

     Typically, this file should be provided by your technology library vendor. But if not, you can create it yourself.

    • Post Points: 5
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Started by yazdan at 07 Oct 2011 12:32 AM. Topic has 3 replies.