Patent ID: 7714436

Claim:
An electronic device, comprising: a semiconductor device including: a semiconductor chip having an electrode; a convex-shared resin protrusion provided on a surface of the semiconductor chip, the surface having the electrode; and wiring having a plurality of electrical coupling sections which are aligned on the resin protrusion and electrically coupled to the electrode; and a wiring substrate having a wiring pattern, wherein: the semiconductor device is mounted to the wiring substrate so that the electrical coupling sections and the wiring pattern are brought into contact and electrically coupled with each other; and the plurality of electrical coupling sections brought into contact with the wiring pattern include curved or bent shapes projecting in a longitudinal direction of the resin protrusion, wherein: the plurality of electrical coupling sections brought into contact with the wiring pattern are provided such that a first length from an end thereof in a width direction of the resin protrusion to a hypothetical center line of the resin protrusion in the longitudinal direction is longer than a second length from a center thereof in the width direction of the resin protrusion to the hypothetical center line.