Boron doped silicon thin films can be formed on {HEAD ~ the substrate} in {TAIL ~ this manner} 
Boron doped silicon thin films can be formed on { HEAD ~ the substrate } in { TAIL ~ this manner }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL