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