Also provided is an irregular shaped substrate comprising a substrate having {HEAD ~ a perimeter} with {TAIL ~ at least one rounded corner} and wherein the perimeter does not substantially form a square 
with
Also provided is an irregular shaped substrate comprising a substrate having { HEAD ~ a perimeter } with { TAIL ~ at least one rounded corner } and wherein the perimeter does not substantially form a square
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 TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH