wherein the first dummy metal and the second dummy metal are formed at a nearest location among the plurality of {HEAD ~ the dummy metals} in {TAIL ~ a plan view}, 
wherein the first dummy metal and the second dummy metal are formed at a nearest location among the plurality of { HEAD ~ the dummy metals } in { TAIL ~ a plan view } ,
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH