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Misalignment of schematic while porting

garry01

When I am porting schematic library from x foundry to y foundry (for now assume all other instance properties like width length etc are same), there is misalignment so net connectivity is lost.

 For example if i have nmos in x foundry on converting to Y foundry it is getting shifted and rotated. So what is the best possible solution?

I was thinking about shifting and rotating the instances (mos,resistors etc) so that it comes to same position on porting  and then connecting the floating terminals to nearest wire if there is still any offset. Hopefully it should work. If yes then please let me know how to go about it . (i am pretty new to skill). 

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  • Andrew Beckett

    If the symbols have the same pins, then there's nothing to stop you copying the symbol views of one PDK into the other. If the pins are different, you'd have to do more editing - but I see no reason why it should matter (other than it being a maintenance headache). Could be automated with some SKILL code reasonably easily.

    If no pins need changing, you could just use the "By View" tab of the Copy Wizard in the library manager to copy them all in one go.

    Regards,

    Andrew.

Reply
  • Andrew Beckett

    If the symbols have the same pins, then there's nothing to stop you copying the symbol views of one PDK into the other. If the pins are different, you'd have to do more editing - but I see no reason why it should matter (other than it being a maintenance headache). Could be automated with some SKILL code reasonably easily.

    If no pins need changing, you could just use the "By View" tab of the Copy Wizard in the library manager to copy them all in one go.

    Regards,

    Andrew.

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