Patent ID: 7529449

Claim:
A semiconductor device including a substrate bonded to a semiconductor integrated circuit, comprising: a plurality of sphere shaped solder bumps adhered to the semiconductor integrated circuit; a plurality of contact portions, each of which is disposed at a position corresponding to the position of each of the plurality of solder bumps and includes a contact surface which contacts the corresponding solder bump; a guidance structure disposed in the contact surface, the guidance structure includes a hole and when the solder bump is melted, guides the melted solder bump to the hole within the contact surface, the hole is set so that the semiconductor integrated circuit and the substrate are accurately aligned, and the hole is provided having a dimension small enough to form the dimension of the solder bump that guides only the melted solder therein; and a space regulating member to regulate a space between the semiconductor integrated circuit and the substrate, after the melted solder is guided into the guidance structure, when the semiconductor integrated circuit and the substrate are bonded together.