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