{HEAD ~ the third step} of arranging {TAIL ~ another member} on the joining layer and heating the joining layer to not less than a temperature which is a melting point of boron oxide for a predetermined period of time 
of arranging
{ HEAD ~ the third step } of arranging { TAIL ~ another member } on the joining layer and heating the joining layer to not less than a temperature which is a melting point of boron oxide for a predetermined period of time
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH