A thin conductive overlayer is provided on {HEAD ~ the substrate}, and {TAIL ~ oxide isolation} is used to isolate the memory array 
A thin conductive overlayer is provided on { HEAD ~ the substrate } , and { TAIL ~ oxide isolation } is used to isolate the memory array
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH