{HEAD ~ a first conductive type body region}, which is formed in {TAIL ~ the high voltage} well, wherein the first source is in the body region 
is formed in
{ HEAD ~ a first conductive type body region } , which is formed in { TAIL ~ the high voltage } well , wherein the first source is in the body region
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH