Patent ID: 8766418

Claim:
A semiconductor device comprising: a first semiconductor chip; an extension formed so as to outwardly extending from a side surface of the first semiconductor chip; a connection terminal formed on the first semiconductor chip; a re-distribution part disposed over the first semiconductor chip and the extension and including an interconnect connected to the connection terminal and an insulating layer covering the interconnect; and an electrode formed above the extension on a surface of the re-distribution part and connected to part of the interconnect exposed through an opening formed in the insulating layer, wherein the electrode is mainly made of a material having an elastic modulus higher than that of the interconnect of the re-distribution part, the electrode includes a bonding region where the electrode is bonded to the interconnect at the opening of the insulating layer, and an outer region closer to an end part of the extension than the bonding region is to the end part of the extension, and the interconnect of the re-distribution part is formed so as not to continuously extend to a position right below the outer region of the electrode.