Semiconductor device and method of manufacturing the same, circuit board, and electronic equipment

摘要

A tip of a first wire is bonded to a first electrode. The first wire is drawn from the first electrode to a bump on a second electrode. A part of the first wire is deformed and bonded to the bump. A tip of a second wire formed in the shape of a ball is bonded to the bump by using a tool in a state in which at least a part of the tip is superposed on the first wire. A part of the first wire which is not deformed by bonding is prevented from being deformed by the tip of the second wire and the tool.