Referring to FIG 4, a barrier metal is deposited on {HEAD ~ the blocking layer} 313, thereby forming {TAIL ~ the barrier layer} 314 to prevent charges from transferring from the control gate electrode 315 to the channel during an erase operation 
forming
Referring to FIG 4 , a barrier metal is deposited on { HEAD ~ the blocking layer } 313 , thereby forming { TAIL ~ the barrier layer } 314 to prevent charges from transferring from the control gate electrode 315 to the channel during an erase operation
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH