This implant enhances the dopant concentration in source regions 34 and 36, and creates {HEAD ~ the drain region} 60, which is self aligned to {TAIL ~ LOCOS islands} 42 and 44 
This implant enhances the dopant concentration in source regions 34 and 36 , and creates { HEAD ~ the drain region } 60 , which is self aligned to { TAIL ~ LOCOS islands } 42 and 44
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH