forming {HEAD ~ a plurality} of {TAIL ~ electrically conductive control gates} each disposed adjacent to and insulated from one of the channel region first portions for controlling a conductivity of the one channel region first portion; and 
of
forming { HEAD ~ a plurality } of { TAIL ~ electrically conductive control gates } each disposed adjacent to and insulated from one of the channel region first portions for controlling a conductivity of the one channel region first portion ; and
OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL 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 OTH OTH OTH OTH OTH OTH OTH OTH