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