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