| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a conjugate in which an aluminum member and a metallic component comprising one of copper, nickel, and silver are favorably jointed, and when a heat cycle is loaded, a generation of a crack in a junction can be suppressed, and joint reliability is favorable; a substrate for a power module; and the substrate for a power module with a heat sink.SOLUTION: At a junction between an aluminum member and a metallic component, a Ti layer 15 that locates at a side of the metallic component and an Al-Ti-Si layer that locates between the Ti layer and the aluminum member in which Si performs solid solution in AlTi are formed, and the Al-Ti-Si layer includes: a first Al-Ti-Si layer that is formed at a side of the Ti layer; and a second Al-Ti-Si layer with an Si concentration lower than that of the first Al-Ti-Si layer that is formed at a side of the aluminum member.</p> |
