A semiconductor memory having memory cells, each memory cell includes {HEAD ~ a selection transistor} and {TAIL ~ a trench capacitor} 
A semiconductor memory having memory cells , each memory cell includes { HEAD ~ a selection transistor } and { TAIL ~ a trench capacitor }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL