Simple Way to get QTrek techfile from CDS Techfile??

Discussion in 'Cadence' started by Rajeswaran M, Sep 28, 2004.

  1. Rajeswaran M

    Rajeswaran M Guest

    Is there any simple way to get QTrek techfile??
     
    Rajeswaran M, Sep 28, 2004
    #1
  2. Rajeswaran M

    John Gianni Guest

    The information in the DFII techfile is not necessarily the same
    information that is in the Virtuoso Layout Migrate technology file. In
    fact, most of the information in the qtt file isn't even in the DFII
    techfile (yet).

    Just like you wouldn't necessarily derive an Assura or Calibre rule
    deck from the DFII technology file, you don't necessarily have all the
    data points you need for a layout migration or optimization or eco in
    the DFII technology file.

    However, there is a simple AE ware (undocumented unsupported) 300-line
    PERL script, tf2qtt, that creates a boilerplate qtt file from an ASCII
    dump of the DFII techfile.

    In addition, Customers should press their CDK vendor to supply the qtt
    file (for now) in the CDK pdk vlm directory. For example, I just
    looked in the latest Cadence generic 90nm CDK (CDK090_v1p0p7) which
    contains the following directory tree:
    CDK090 / pdk090 / vlm090 / gpdk090.qtt & gpdk090_migratemap.il

    John Gianni
    ---
    Nothing I say on the USENET is sanctioned by my employer.

    CDK === Complete Design Kit (everything to run all desired tools)
    pdk === process design kit (enough to run all desired custom
    tools)
    vlm === Virtuoso Layout Migrate (the desired tool in question on this
    thread)
     
    John Gianni, Sep 30, 2004
    #2
  3. Rajeswaran M

    Rajeswaran M Guest

    Thanks for the info. I belong vendor side!! Is tf2qtt script available
    in the installation tree?
     
    Rajeswaran M, Oct 1, 2004
    #3
  4. Rajeswaran M

    fogh Guest

    John,

    Aki Fujimura mentioned during DATE that a foundry database standard not quite unlike OA was on it's way.
    Do you have news about that ?
    Will that help share process/physical/electrical data among P&R, layout edit, retargetting, verification, tutti quanti ?

    It is true that those tools don t necessarily need the same values, so there must be a mechanism to let the PDK maker declare tool-specific values. But it is not AFAICS contradictory with those tools using tech data from the same source by default.
    Tech data is needed by icc, fastcap/RCX, VXL, cell3, Qtrek, .... and too little integration to my taste. Wouldn t you see a unified database that contains enough info LPE, EM solvers, and can be extended for complete TCAD, as a step in the right direction ?
     
    fogh, Oct 7, 2004
    #4
Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.