after packaging the plurality of non volatile memory die into the memory device, determining an amount of {HEAD ~ programmable/erasable memory} in {TAIL ~ the memory device} 
in
after packaging the plurality of non volatile memory die into the memory device , determining an amount of { HEAD ~ programmable / erasable memory } in { TAIL ~ the memory device }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL