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PowerDC Queries

cistheta07

Hi everyone,


I’m currently working on IR drop analysis using Cadence Sigrity PowerDC and exploring some of its advanced setup options. As I go through the workflow, I have a few questions related to material definition and thermal analysis.
How can I define a custom material file?
Does PowerDC support IR drop simulation across different temperature points?
What engine is used for thermal analysis in PowerDC?
Can we model active components and include the same in IR drop simulation?


Any guidance or insights would be greatly appreciated.

  • ShivaShankarM

    Hey cistheta07,

    Interesting set of questions — I’ve run into some of these while working with PowerDC as well Slight smile

    For the material part, you can define custom materials through the Material Manager in the stackup setup. It also allows you to assign conductivity values at different temperature points, so you can explore how IR drop behaves with temperature variations.

    Out of curiosity — are you trying to correlate electrical results at different temperatures, or planning to look at electro-thermal effects as well?

    Thanks,

    Shiva Shankar M

  • cistheta07
    in reply to ShivaShankarM

    Hi Shiva Shankar and Community,

    Thank you for sharing your insights.

    It is good to know that custom materials can be defined by the Material Manager in PowerDC.     Could you please guide me through the steps required to define a custom material?

    At present, my primary focus is on correlating electrical results across different temperature conditions. Going forward, I would also like to explore the electro-thermal aspects of the analysis and understand how thermal distribution impacts the IR-drop behavior of the power delivery network.

    I would also appreciate it if other experts in the community could share their insights or recommendations related to the other questions mentioned above.

  • Sumith
    in reply to cistheta07

    PowerDC supports IR drop simulation across various temperature points, but it requires temperature-dependent material definitions to be set up and assigned to all objects in the database. 

    Please note that non-linear characteristics of active components might not be accurately captured in the simulation. However, you can define the power dissipation values for these components to enable thermal analysis.

    Could you please clarify your objectives regarding the active components in this simulation?

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