Patent ID: 7196418

Claim:
A semiconductor device that includes a semiconductor element having a plurality of electrodes arranged on one principal surface thereof and a wiring substrate having a conductive layer provided on an insulating substrate, wherein the wiring substrate includes the insulating substrate, the conductive layer formed on a surface of the insulating substrate, and an insulating protection layer selectively covering the conductive layer, and wherein the wiring substrate is arranged in a substantially U-shape along an outer edge of the semiconductor element with the insulating protection layer being an inner side so that the conductive layer faces the electrodes of the semiconductor element and the wiring substrate selectively covers a part of the one principal surface and a part of the other principal surface, an end of the conductive layer of the wiring substrate is directly connected to the electrodes of the semiconductor element on the principal surface, and the other end of the conductive layer extends in a direction opposite to the semiconductor element from a surface of the insulating substrate to an opposite surface thereof via a throughhole formed in the insulation layer on the other principal surface side of the semiconductor element.