ASSEMBLY, POWER-MODULE SUBSTRATE PROVIDED WITH HEAT SINK, HEAT SINK, METHOD FOR MANUFACTURING ASSEMBLY, METHOD FOR MANUFACTURING POWER-MODULE SUBSTRATE PROVIDED WITH HEAT SINK, AND METHOD FOR MANUFACTURING HEAT SINK

摘要

An assembly obtained by joining the following together: an aluminum member comprising an aluminum alloy; and a metal member comprising copper, nickel, or silver. The aluminum member comprises an aluminum alloy having a solidus temperature that is less than the eutectic temperature of aluminum and the metal element constituting the metal member. A titanium layer is formed at the join between the aluminum member and the metal member. The aluminum member and the titanium layer form a solid-phase diffusion bond, as do the titanium layer and the metal member.