Difference between a generic and a commercial PDK

Discussion in 'Cadence' started by Amr Kassem, Oct 2, 2009.

  1. Amr Kassem

    Amr Kassem Guest

    Why are generic PDKs ( Cadence's GPDK, NCSU's CDK) much smaller in
    size than commercial PDKs made by foundries?
     
    Amr Kassem, Oct 2, 2009
    #1
  2. Amr Kassem

    Andrew Beckett Guest

    Amr Kassem wrote, on 10/02/09 23:55:
    They are a representative example. A real PDK will often contain multiple
    process options - and in particular RC extraction data when you have 20
    different process options (or more) can take up a lot of space.

    Also, there may be different available components.

    Sometimes the pcells are more complex, and invariably the characterized
    transistor models will be much more complex (the generic PDKs contain "made up"
    transistor parameters, and so don't tend to have binned models or quite so much
    parasitic modeling).

    So that's just a few reasons...

    Regards,

    Andrew.
     
    Andrew Beckett, Oct 3, 2009
    #2
  3. Amr Kassem

    Amr Kassem Guest

    Thanks Andrew
     
    Amr Kassem, Oct 3, 2009
    #3
  4. Amr Kassem

    Riad KACED Guest

    Riad KACED, Oct 5, 2009
    #4
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