Also, {HEAD ~ damage} to other semiconductor structures, such as {TAIL ~ emitters} , is thereby prevented 
Also , { HEAD ~ damage } to other semiconductor structures , such as { TAIL ~ emitters } , is thereby prevented
OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH