CU/AL HYBRID ALLOY WITH ENHANCED RELIABILITY BY CONTROLLING DIFFUSION AND REACTION OF CU AND AL, AND MANUFACTURING METHOD THEREOF

摘要

According to the present invention, a Cu/Al hybrid alloy material includes: one or more Cu material layers containing Cu of 70% or more; one or more Al material layers containing Al of 80% or more; and one or more intermediate metal layers which inhibits diffusion and reaction of Cu and Al in an interface of the Cu material layer and the Al material layer. The Cu/Al hybrid alloy material has a multilayered structure in which there are three layers or more and the intermediate metal layer is interposed between the Cu material layer and the Al material layer. According to the present invention, the intermediate metal layer for inhibiting diffusion and reaction of Cu and Al is interposed between the Cu material layer of which a main element is Cu and the Al material layer of which a main element is Al. Therefore, when the Cu/Al hybrid alloy material is used for bonding the Cu material layer and the Al material layer or is used at high temperatures, generation of a compound in the interface between the Cu material layer and the Al material layer can be prevented.;COPYRIGHT KIPO 2014