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Virtuoso XL: how to remove instance pin from net?

caver456

I'm using XL layout on a layout that was initially created in L and has no connectivity source.

Most of the layout work for this cell has been completed in L with no connectivity, so, I'm just using XL to create some nets within the already-completed-layout region (by assigning a net name in the Connectivity tab of the Edit Properties form for a shape in the completed area), and add some instance pins from the not-yet-laid-out region (using Connectivity -> Assign) to those nets, to get the flight lines and drag lines.

This is a big help, but, how can I remove an instance pin from a net, i.e. in case I screw up during the assignment?

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  • caver456
    Thanks for the reply Marc. In this case where we have no attached schematic. We're transitioning from L to XL and assessing the workflow for using XL and some hand-made connectivity for the not-yet-laid-out devices within layout cells that have already been mostly done by hand in L with no SDL at all. Certainly this is not as optimal as starting with a real schematic right from the beginning, but, it's probably something we will be doing more of during the transition.
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  • caver456
    Thanks for the reply Marc. In this case where we have no attached schematic. We're transitioning from L to XL and assessing the workflow for using XL and some hand-made connectivity for the not-yet-laid-out devices within layout cells that have already been mostly done by hand in L with no SDL at all. Certainly this is not as optimal as starting with a real schematic right from the beginning, but, it's probably something we will be doing more of during the transition.
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