COMPRESSION WELDING METHOD

摘要

PURPOSE: A compression welding method is provided to weld glass plates having various sizes to silicon, ceramic or a metal substrate at a low temperature and low pressure environment. CONSTITUTION: A metal welding layer(33) is patterned on an upper surface of a substrate(31). Then, a welding member(35) is aligned on the metal welding layer(33). Then, heat is applied to the substrate(31) while applying pressure to the metal welding layer(33) so that the metal welding layer(33) is melted, thereby welding the substrate(31) to the welding member(35). The substrate(31) includes a silicon substrate or a ceramic substrate. The metal welding layer(33) includes an aluminum layer. The welding member(35) includes an optical device made from glass.