| 摘要 |
PURPOSE:To enable welding with a simple stage by pressing a substrate stuck respectively with specific different metallic films on the surface in a laminated state and the other substrate to each other with these metallic films on the inside and welding the substrate thereby increasing the thickness of the adhered layer and improving the adhesive strength and weatherability. CONSTITUTION:An alloy film 9 is formed on a substrate 8 and an SiO2 film 10 thereon by vapor deposition and further a PbO film 11 is formed thereon. An alloy film 9' is formed on the other substrate 8' as well and an SiO2 film 10' thereon by vapor deposition. The PbO film 11 of one substrate and the SiO2 film 10' of the other substrate are positioned to face each other and are welded by the chemical reaction of PbO and SiO2 by heating and pressurizing from the arrow direction. The adhered layer between the substrates is thus made thin in the stage of adhering the substrates and the temp. during the welding is made relatively low. Since the intrication of the structure of the substrates is averted, the less stage is required and the substantial adhesive strength and weatherability are provided. |
