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