Patent ID: 7919858

Claim:
A semiconductor device comprising: (a) a wiring board; (b) a semiconductor chip mounted over a first surface of the wiring board; and (c) a plurality of wires which respectively couple a plurality of electrodes formed at the wiring board and a plurality of bonding pads formed at the semiconductor chip, wherein the wiring board includes: (a1) the electrodes formed at the first surface of the wiring board; (a2) a plurality of first lands formed at the first surface of the wiring board and provided so as not to overlap with the electrodes in a plan view; (a3) a plurality of first wirings which are formed at the first surface of the wiring board and which electrically couple the electrodes and the first lands, respectively; (a4) a plurality of vias which are respectively formed so as to be internally contained in the first lands in a plan view and which extend through the wiring board; (a5) a plurality of second lands which are formed at a second surface corresponding to a surface opposite to the first surface of the wiring board and formed so as to internally contain the vias in a plan view and which are electrically coupled to the vias, respectively; (a6) a protective film formed at the second surface of the wiring board, the protective film having a plurality of first openings being larger in area than the second lands, respectively, and internally containing the second lands, respectively; and (a7) a plurality of first protruded electrodes respectively provided at the first openings defined in the protective film and which are electrically coupled to the second lands, respectively, wherein the wiring board is shaped in rectangular form, wherein the electrodes are disposed along the sides of the wiring board, wherein some of the first lands are disposed in an area lying outward from an area of the wiring board at which the electrodes are disposed, and wherein some of the first lands are disposed in an area lying inward from the area of the wiring board at which the electrodes are disposed.