The shorter channel length, when combined with the deeper enhancement region, allows for {TAIL ~ higher lifetime electron irradiation doses} or {HEAD ~ heavy metal diffusion temperatures} 
The shorter channel length , when combined with the deeper enhancement region , allows for { TAIL ~ higher lifetime electron irradiation doses } or { HEAD ~ heavy metal diffusion temperatures }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD