a second conductive layer connected to the first conductive layer at {HEAD ~ a region} overlying {TAIL ~ the first semiconductor layer} 
a second conductive layer connected to the first conductive layer at { HEAD ~ a region } overlying { TAIL ~ the first semiconductor layer }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL