Ok. i shown M5 here for simplicity, i don't use M5 for mesh. my mesh consist of M12(H),M11(V) top ring and M11(V) stripes, its connected to M6(H) and its again to M3(V) and then M2 for site row rail.
upto M6 i can able to create stripes with out any warning. but while creating M3 stripes i get lots of warning like this "**WARN: (IMPPP-387): Stripe at 270.640 has potential forbidden spacing violation if there are the signal wires on 271.670 and 271.740 tracks or on 269.570 and 269.500 tracks. Need to move centerline from 270.640 to 270.632 to avoid the violation".
m3 stripe width is 2 and spacing is 7.98 and set-set distance 14.98 , these all are multiple of M3 pitch 0.07 (16nm).
i think if i'm neglect this warning , it will create DRC problems after routing??
could you please help me to resolve this warning. and provide me a idea about how to give spacing and s-s distance for lower order metals in lower node.
Thanks in advance.