Patent ID: 8356742

Claim:
A method of manufacturing a semiconductor device in which a first member and a second member are connected by a connecting material, the method comprising: a preparation step of settling a material for forming the connecting material between the first member and the second member; and a connection step of connecting the first member and the second member by heat treatment after the preparation step, to form the connecting material, wherein, in the connection step, an Al-based layer, a first Zn-based layer and a second Zn-based layer of the material for forming the connecting material are fused to form a first Zn—Al-based layer and a second Zn—Al-based layer, and after the connection step, a part of the Al-based layer is not fused and left as an Al-based layer, wherein the connecting material, after the connection step, has an Al-based layer and first and second Zn—Al-based layers respectively provided on opposed surfaces of the Al-based layer, and wherein the first member is a semiconductor element.