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Difference between ADE and VSDE simulations

Hi,Andrew

Thanks for your quick reply.

I also have this trouble, when I use cadence VSDE to do corner simulation,you know combining process,process,temperature and other variables. I found that under the same condition VSDE spectre simulation results are alwayes unconsistent with ADE spectre results,the difference is sometimes small and sometimes obviously large .

I don't know if you have encounted this before,maybe you can help me with this.

About this issue,I have found the root cause finally. The PDK resistor contains two diodes within itself,and these diodes caused a second and abnormal Operation Point.That's why VSDE DC simulation went wrong. I hope this experience be helpful.

yours

yuanzy

Andrew Beckett over 13 years ago

Yuanzy,
I split this into a separate topic, to keep it simpler. As described in the Forum Guidelines, tacking onto an old thread is not a good idea (especially when it's a completely separate topic).
I've not encountered your problem before. Maybe somebody else can help, or maybe you could contact Customer Support.
Regards,
Andrew.
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