Patent ID: 8592961

Claim:
A semiconductor device comprising: a semiconductor chip having an obverse surface, and a plurality of electrodes formed on the obverse surface thereof; a chip mounting portion having an obverse surface on which the semiconductor chip is mounted; a suspension lead integrated with the chip mounting portion; a plurality of leads disposed around the chip mounting portion; a plurality of wires connecting the plurality of electrodes with the plurality of leads, respectively; and a sealing body having a top surface, a bottom surface opposite the top surface, a first side surface, a second side surface, and a third side surface, the sealing body sealing the semiconductor chip, a part of the chip mounting portion, a part of the suspension lead, and a part of each of said plurality of leads, wherein the chip mounting portion has a surface portion exposed from the bottom surface of the sealing body, wherein the first, second, and third side surfaces are positioned between the top and bottom surfaces in a thickness direction of the sealing body, wherein, in a plan view of the semiconductor device, the first side surface extends in a first direction, the second side surface extends in a second direction perpendicular to the first direction, and the third side surface extends between adjacent ends of the first side surface and the second side surface and is oblique with respect to the first and second side surfaces, wherein each of the plurality of leads has a first main surface, a second main surface opposite the first main surface, and a first end surface, the second main surface being exposed from the bottom surface of the sealing body, and the first end surface being exposed from a corresponding one of the first and second side surfaces of the sealing body, wherein the suspension lead has a third main surface, a fourth main surface opposite the third main surface, and a second end surface, the fourth main surface being covered by the sealing body, and the second end surface being exposed from the third side surface of the sealing body, and wherein a dimension of the second end surface of the suspension lead in a thickness direction of the sealing body is less than a respective dimension of the first end surface of each of said plurality of leads in the thickness direction of the sealing body.