source and drain regions of a p type diffusion region formed at {HEAD ~ respective outer sides} of said source and drain extension regions as viewed from {TAIL ~ said channel region}, said source region being formed in continuation to said source extension region, said drain region being formed in continuation to said drain extension region; and 
source and drain regions of a p type diffusion region formed at { HEAD ~ respective outer sides } of said source and drain extension regions as viewed from { TAIL ~ said channel region } , said source region being formed in continuation to said source extension region , said drain region being formed in continuation to said drain extension region ; and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH