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Nwell Edge Distance to MOS Channel

ESSCCS

Hi,

I need to calculate the distance between Nwell edges (shapes or as part of PCell) to the PMOS channel (overlapping area between PO and OD) using Skill.

Would you please guide me to the right commands to achieve that?

Thanks.

  • Perhaps using some combination of dbGetNeighbor or dbGetNeightborList, and then some layer manipulation of the results using dbLayer.* functions. Quite hard to describe without knowing all the constraints as to what it needs to look for - so I'm not going to throw together an example because it has a pretty poor chance of actually doing what you want given that the description is not that precise.

    Why do you need to do this?

    Andrew

  • in reply to Andrew Beckett

    Hi Andrew,
    this is required calculation to detect matching structures which could suffer from Well Proximity Effect (WPE).
    In verification flow e.g. DRC, there is limitation to add intelligence to the check to filter the result to smaller set.
    Many thanks for your support.

  • in reply to ESSCCS

    I was about to say that using a physical verification tool is the best approach for measuring this kind of thing - they are designed to measure distances and minimum spacings and so on - I then see you'd edited the post after originally sending it. I still think that's likely to be the best approach - if you do want to do it in SKILL, then the functions I suggested before would probably be the right approach.

    Andrew

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