{HEAD ~ The Si forming solution} may be coated on a substrate and a solvent in the Si forming solution may be coated on {TAIL ~ the substrate} 
{ HEAD ~ The Si forming solution } may be coated on a substrate and a solvent in the Si forming solution may be coated on { TAIL ~ the substrate }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL