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