Patent ID: 8053875
Filing Date: 2011-11-08
Classification: H01L

Abstract:
1. A semiconductor device comprising: a semiconductor chip having an obverse surface, a reverse surface opposite the 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 supporting 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 sealing the semiconductor chip, a part of the suspension lead, and a part of each of said plurality of leads, wherein each of said plurality of leads has an obverse surface facing substantially a same direction as a top surface of the sealing body and exposed from the sealing body, a reverse surface having an outer end portion exposed from a bottom surface of the sealing body, and an end surface exposed from a side surface of the sealing body, and wherein the suspension lead has a punched outer end portion configured to lie on a diagonal of the sealing body in plan view, with an end surface of the punched outer end portion being substantially in a plane perpendicular to the diagonal, and such that a reverse surface of the punched outer end portion is covered by the sealing body, with the end surface and an obverse surface of the punched outer end portion being exposed from the sealing body, and further such that a thickness of the end surface of the suspension lead is less than a respective thickness of the end surface of each of said plurality of leads in a thickness direction of the sealing body.