Diffusion layer connecting is prohibited, how should I write rules?

Discussion in 'Cadence' started by Tech11, Apr 5, 2006.

  1. Tech11

    Tech11 Guest

    Hi,

    I'm one layout engineer and diffusion layer connecting is prohibited in my
    design now, but since I modify my design based on last edition and need to
    check out those diffusion used as connect. According to my experience, maybe
    I may do it by soft-connect check, so I write such rules as below:

    *INPUT-LAYER
    .........
    CONNECT-LAYER = PSUB WEL ... CONM ...
    *END

    SELECT DIFF OVERLAP RSYMBOL DIFRES ;;RSYMBOL is one mask layer for diff
    res;
    AND DIFF PO1 DIFP1
    AND DIFF PO2 DIFP2
    NOT DIFF DIFRES DIFN1
    NOT DIFN1 DIFP1 DIFN2
    NOT DIFN2 DIFP2 DIFN3

    AND DIFN3 CONT CONDF
    SELECT ME1 OVERLAP CONDF CONM
    AND CONM DIFN3 DIFCT

    SCONNECT CONM DIFN3 BY DIFCT
    SOFTCHK DIFN3 OUTPUT S_DIFN3 45

    But I can't get the just part of diff, even I convert to calibre rule file
    and run 'LVS SOFTCHK DIFN3 CONTACT' or 'LVS SOFTCHK DIFN3 UPPER MASK', How
    should I do?

    Thanks for your help

    B.R.

    Joffre
     
    Tech11, Apr 5, 2006
    #1


  2. What does "I can't get the just part of diff" mean?

    The rules look like Dracula rules - but then you talk about Calibre. What are
    you using?

    Andrew.
     
    Andrew Beckett, Apr 12, 2006
    #2
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