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<@U06H50VMDPU> Can we find a klayout or magic deck with updated rules somewhere ? Including the new density limits.

<@U016HU5HK8V> We should be able to make the rules public.  I added to my topic list for today.  I'll post back when I have more information.

<@U016HU5HK8V> Here are the new DRC rules.  This is pulled from a bash script I run them with.

FILE=$1
TOP_CELL=$2

INPUT_GDS=$FILE
OUTPUT_PATH=$RUN_DIR
LOG_PATH=$RUN_DIR

tech_mr=sky130A_mr.drc

echo ""

echo "Running FEOL"
klayout -b \
    -r $tech_mr \
    -rd input=$INPUT_GDS \
    -rd topcell=$TOP_CELL \
    -rd report=${OUTPUT_PATH}/klayout_feol_check.xml \
    -rd thr=12 \
    -rd feol=true &gt;&amp; ${LOG_PATH}/klayout_feol_check.log

echo "Running BEOL"
klayout -b \
    -r $tech_mr \
    -rd input=$INPUT_GDS \
    -rd topcell=$TOP_CELL \
    -rd report=${OUTPUT_PATH}/klayout_beol_check.xml \
    -rd thr=12 \
    -rd beol=true &gt;&amp; ${LOG_PATH}/klayout_beol_check.log

echo "Running Offgrid"
klayout -b \
    -r $tech_mr \
    -rd input=$INPUT_GDS \
    -rd topcell=$TOP_CELL \
    -rd report=${OUTPUT_PATH}/klayout_offgrid_check.xml \
    -rd thr=12 \
    -rd offgrid=true &gt;&amp; ${LOG_PATH}/klayout_offgrid_check.log

Here are the density rule decks.  I run them similar to the above script.  You might have to pass `step=70` to klayout.

<@U06FKCF4E5T> Mmm, that sky130A_mr.drc is the same as in mpw_precheck AFAICT, so I don't see anything in there aboit HVI 0.84u min width and the 0.38u nwell overlap of lvtn.

Those two rules are extras not in the drawn layers. 

wdym not in drawn layers ?  They're not drawn in magic, but (1) they are in klayout and (2) it's not a rare occasion for magic to generate some layers wrong and needing `MASKHINTS_xxx` fixups, I gotta do that for PSDM/NSDM half the time ... so finding out those issue early is pretty important if they're going to end up causing the final design to be rejected.

<@U016HU5HK8V> there are rules that apply to combination of layers that are not public. I am not at liberty to describe these rules more than that at this time. We are working to get this changed, but that’s the situation now. By making those changes in TT08 blocks downstream errors were fixed. 