Semiconductor device and method for fabricating semiconductor device

A semiconductor device, comprising:

• a semiconductor chip including a first electrode of a semiconductor element and a second electrode of the semiconductor element, the first electrode being configured on a first surface of the semiconductor chip, the second electrode being configured on a second surface of the semiconductor chip, the second surface being opposite to the first surface of the semiconductor chip;
• an encapsulating material encapsulating a surface portions of the semiconductor chip, the surface portions being other than regions, each of the regions connecting with the first electrode or the second electrode;
• inner electrodes, each of the inner electrodes being connected with the first electrode or the second electrode, a thickness of the inner electrode from the first surface or the second surface being the same thickness as the encapsulating material from the first surface or the second surface in a direction perpendicular to the first surface or the second surface, respectively;
• outer electrodes, each of the outer electrodes being formed directly on the encapsulating material, the outer electrode being connected with the respective inner electrode, a width of the outer electrode being at least wider than a width of the semiconductor chip in a direction parallel to the first surface or the second surface;
• and
• outer plating materials, each of the outer plating materials covering five surfaces of each outer electrode other than one surface of the outer electrode being connected with the respective inner electrode.