A third dielectric layer covers {TAIL ~ the second array} of wordlines and exposed portions of {HEAD ~ the second dielectric layer} 
A third dielectric layer covers { TAIL ~ the second array } of wordlines and exposed portions of { HEAD ~ the second dielectric layer }
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD