In {TAIL ~ the present example}, the gate structures interpose LDD features respectively disposed in the source region and {HEAD ~ the drain region} 
In { TAIL ~ the present example } , the gate structures interpose LDD features respectively disposed in the source region and { HEAD ~ the drain region }
OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD