 a write word line that controls a transistor formed between the conductive spacer in a first bit sub cell and the conductive spacer in a second bit sub cell, said {TAIL ~ write word line} is aligned orthogonal to said first bit line and {HEAD ~ second bit} line 
a write word line that controls a transistor formed between the conductive spacer in a first bit sub cell and the conductive spacer in a second bit sub cell , said { TAIL ~ write word line } is aligned orthogonal to said first bit line and { HEAD ~ second bit } line
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 OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH