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Distinguish net names

shangwu

I have 3 ground planes. Say AGND, DGND and PGND. They are meant to be separated entirely, except to only join in them at a single point at where I wanted. However, if I connect them together in the schematic, the rats nets show them to be a single net and any via would connect them unwantedly. How do I distinguish them? I tried separating them in the schematic level, connect each grounds separately in the layout. Once these are done, I connect them together in the schematic and hope I can connect them in PCB Editor, but everything messes up. Does anyone know how to solve this?

Thank you.

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  • Wild

    I do exactly what Steve suggested. 

    Only issue: The Cam tools our fab houses uses, flag the net short as an unconnected net in the IPC356/Artwork files.  They ask me approve the net error they flag.  We have never have a build issue due to this,  so I consider it not a big deal, just be aware that this may happen.

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  • Wild

    I do exactly what Steve suggested. 

    Only issue: The Cam tools our fab houses uses, flag the net short as an unconnected net in the IPC356/Artwork files.  They ask me approve the net error they flag.  We have never have a build issue due to this,  so I consider it not a big deal, just be aware that this may happen.

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