In an embodiment, {HEAD ~ the non conductive barrier region} 38 is {TAIL ~ a shallow trench isolation area} 
is
In an embodiment , { HEAD ~ the non conductive barrier region } 38 is { TAIL ~ a shallow trench isolation area }
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL