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Transient noise contribution works in spectre but failed in APS.

zuiying

Hello! I used "noise contribution" function in tran to remove some noise source. In the following schematic, I wanted to disable the noise contribution of M3.

Then, I wrote "/I9/M3" in the Instance list.

To accelerate simulation, I chose APS. But after simulation, I found the wave of Vvg<0> was the same as not removing the noise contribution of M3 !

I think it is strange. I changed simulator from APS to spectre. Then the results were different.

But I am sure the noise contrituion indeed worked at previous APS simultions. It is my fisrt time to encounte this situation where noise contribution works in spectre but failed in APS.

My software version is here.

What could be the reason ?

Thanks a lot !

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