The second field oxide region and {TAIL ~ the first field oxide region} are separated by {HEAD ~ the high voltage} well and the body region 
The second field oxide region and { TAIL ~ the first field oxide region } are separated by { HEAD ~ the high voltage } well and the body region
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH