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 GDS II streaming out. 

Last post Thu, Nov 13 2008 8:42 PM by gops. 3 replies.
Started by gops 09 Nov 2008 08:47 PM. Topic has 3 replies and 2120 views
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  • Sun, Nov 9 2008 8:47 PM

    • gops
    • Top 75 Contributor
    • Joined on Tue, Sep 23 2008
    • Trivandrum, Kerala
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    GDS II streaming out. Reply
    I need to stream out GDS file from encounter.Then should i need to merge the gds files of all the standard cells that i used in my design?.Also i need to do the LVS .How should i do the LVS .I think cdl is needed to do LVS .so somebody please give me the guidance to stream out GDS II and do the LVS?
    • Post Points: 20
  • Mon, Nov 10 2008 12:00 AM

    • themperek
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    • Joined on Mon, Nov 10 2008
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    Re: GDS II streaming out. Reply

    Hi,

    Ehen it goes to Virtuoso : http://www.vtvt.ece.vt.edu/vlsidesign/tutorialCadence_importGDS.php

     For LVS you can import verilog netlist and do LVS.

     Regards,

    TH

    • Post Points: 20
  • Wed, Nov 12 2008 11:57 AM

    • Kari
    • Top 10 Contributor
    • Joined on Tue, Jul 15 2008
    • Cary, NC
    • Posts 693
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    Re: GDS II streaming out. Reply

    There are a couple of ways you can merge in your full layouts:

    - use the following switch in your FE streamOut command: -merge {listOfExternalGDSFiles} 

    - stream the FE GDS into a DFII library that contains all of your std cells, rams, IOs, etc.

    As for LVS, the flow can be different depending on the designer and the tool used. A general flow would be to output a physical netlist from FE, which the LVS tool may or may not convert to a spice netlist, and then run LVS pointing to the full GDS of your design and this physical netlist.

     

    - Kari 

     

    • Post Points: 20
  • Thu, Nov 13 2008 8:42 PM

    • gops
    • Top 75 Contributor
    • Joined on Tue, Sep 23 2008
    • Trivandrum, Kerala
    • Posts 118
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    Re: GDS II streaming out. Reply
    Hi Kari; Thanks for the reply.
    • Post Points: 5
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Started by gops at 09 Nov 2008 08:47 PM. Topic has 3 replies.