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  1. #1
    Newbie level 6
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    Missing via (M1-substrate)&(M1-nwell) bulk tsmc65N

    Dear when i do layout using tsmc13rf i created via (M1-substrate)&(M1-nwell) so when i using tsmc65N i am

    missing via (M1-substrate)&(M1-nwell) bulk .kindly your advice

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  2. #2
    Advanced Member level 5
    Points: 38,991, Level: 48

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    Re: Missing via (M1-substrate)&(M1-nwell) bulk tsmc65N

    These should be "contact", not "via", and there is no difference
    between the N+ tap and the N+ source/drain, the P+ tap vs
    the P+ source / drain (generally the contact cells are made to
    include the active cut, needing no additional features to "just
    work".

    If you can't find them you can always just make a stack that
    proper, and keep it local. I do this as a rule because GDS-II
    stream out and in a couple of times tends to leave me with a
    large number of identical-properties, distinct-name "contact"
    cells in the GDS file (like, half of the cell count is 1x2 vias, the
    minimum size used, after the first stream-out when using the
    PDK "contact" menu to generate propertized via mosaics).



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