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Post-layout simulation without spectre view in transistor cell

Hi,

I'm new to extraction and post-layout simulation. I can extract parasitics and generate "av_extracted" view. I can also do post-layout simulation using ADE-L>Setup>Environment>Switch View List and adding "av_extracted" before "spectre".

However, I want to use a config file for more control over the view for each block. The problem is, when generating the config file, I noticed that the transistors model in my PDK do not have spectre view. Using other views like "auCdl" or "auLvs" will not give me the correct answer in my post-layout simulation.

Any suggestion to solve this issue?

Andrew Beckett over 1 year ago

How did you run pre-layout simulation?

You might want to contact the foundry that provided the PDK.

Andrew
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Javadgo over 1 year ago in reply to Andrew Beckett

Thanks Andrew,

I just put the transistor from PDK into my testbench, and the simulation is running smoothly!
Is there a way for me to examine in detailed how the spectre is using these transistors in my pre-layout simulation, perhaps through a netlist or similar means?
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Andrew Beckett over 1 year ago in reply to Javadgo

Which transistor? Are you instantiating lvtnfet or lvtnfet_b? Maybe there's a difference. I don't know enough of the details of this specific technology - so that's why contacting the foundry makes sense.

Andrew
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Javadgo over 1 year ago in reply to Andrew Beckett

Got it, Andrew. I'll reach out to the foundry. Thanks!
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Frank Wiedmann over 1 year ago in reply to Javadgo

I happen to be familiar with this type of PDK. You should probably make sure that you are using the templates from the PDK for your configs. As a workaround, you might also add SimMosfetAccurate to both the View List and the Stop List.
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Javadgo over 1 year ago in reply to Frank Wiedmann

Thank you, Frank! Your suggestion to add SimMosfetAccurate to both the View List and Stop List worked perfectly for me. Now I can see the post-layout result. I'll also reach out to the foundry to inquire about the official template, if there is any.
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