Upon {TAIL ~ completion} of {HEAD ~ processing}, the irregular shaped substrates are easily removed from the panel 
Upon { TAIL ~ completion } of { HEAD ~ processing } , the irregular shaped substrates are easily removed from the panel
OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH