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  3. Library charecterization without post-layout netlists

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Library charecterization without post-layout netlists

iamKarthikBK
iamKarthikBK over 4 years ago

Hello.

I want to characterize cells created in Virtuoso into a standard cell library. I do not have access to the LVS and extraction tool that is supported by the PDK.
(The foundry's golden tool is Calibre/XRC and they do not generate PVS decks without a tapeout commitment. I only have access to assura and PVS.)

Is there a way by which I can characterize the cells without a post layout netlist?
Otherwise, is there a cloud-based service which I can use for this particular project?

Thanks in advance for taking time to answer this question :)

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  • Guangjun Cao
    Guangjun Cao over 4 years ago

    Hi,

    If your question is about Liberate characterization, the netlist don't not have to be a post-layout one. However, the impact of parasitics will not be included in your liberty file. Sometimes, people use this to do pipe cleaning for large IO cells. you can create a spectre netlist from ADE.

    I am not sure how your question on cloud-based service is related. Cadence does offer cloud-based service for liberate characterization. It is normally used for very large scale characterization, eg. Thousands of cells over many corners. By accessing hundreds or thousands of CPUs, the job can be done in a short time. This may not be your choice.

    Guangjun

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  • Guangjun Cao
    Guangjun Cao over 4 years ago

    Hi,

    If your question is about Liberate characterization, the netlist don't not have to be a post-layout one. However, the impact of parasitics will not be included in your liberty file. Sometimes, people use this to do pipe cleaning for large IO cells. you can create a spectre netlist from ADE.

    I am not sure how your question on cloud-based service is related. Cadence does offer cloud-based service for liberate characterization. It is normally used for very large scale characterization, eg. Thousands of cells over many corners. By accessing hundreds or thousands of CPUs, the job can be done in a short time. This may not be your choice.

    Guangjun

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