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