An insulating layer is disposed on the lower substrate and is formed with {HEAD ~ a plurality} of {TAIL ~ notches} 
of
An insulating layer is disposed on the lower substrate and is formed with { HEAD ~ a plurality } of { TAIL ~ notches }
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