A coating film is formed on a substrate of sapphire by coating the substrate with {HEAD ~ a jointing material} prepared by dissolving Al3 and B3 into {TAIL ~ xylene} 
A coating film is formed on a substrate of sapphire by coating the substrate with { HEAD ~ a jointing material } prepared by dissolving Al3 and B3 into { TAIL ~ xylene }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL