{TAIL ~ A contact/container photo} and {HEAD ~ etch} creates a contact/container opening to provide access to the underlying active area either directly or through a conductive plug 
{ TAIL ~ A contact / container photo } and { HEAD ~ etch } creates a contact / container opening to provide access to the underlying active area either directly or through a conductive plug
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH