The semiconductor device of the present invention includes an insulating layer, a copper wiring for wire connection formed on the insulating layer, a shock absorbing layer formed on an upper surface of the copper wiring, the shock absorbing layer being made of a metallic material with a hardness higher than copper, a bonding layer formed on the shock absorbing layer, the bonding layer having a connection surface for a wire, and a side protecting layer covering a side surface of the copper wiring, wherein the side protecting layer has a thickness thinner than a distance from the upper surface of the copper wiring to the connection surface of the bonding layer.