Also, because of {HEAD ~ the energy difference} 413 that exists between the highest filled electron energy state 412 1 and {TAIL ~ the Fermi level Ef}, electrons cannot tunnel from the quantum dot 405 into the control gate 408 
Also , because of { HEAD ~ the energy difference } 413 that exists between the highest filled electron energy state 412 1 and { TAIL ~ the Fermi level Ef } , electrons can not tunnel from the quantum dot 405 into the control gate 408
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH