Patent ID: 7847376
Filing Date: 2010-12-07
Classification: H01L

Abstract:
1. A semiconductor device comprising: a chip mounting portion having a chip supporting surface capable of supporting a semiconductor chip, wherein a dimension of the chip supporting surface is smaller than that of a back surface of the semiconductor chip; a plurality of leads arranged around the chip mounting portion; the semiconductor chip mounted over the chip supporting surface of the chip mounting portion; a plurality of suspending leads for supporting the chip mounting portion; bar-like common leads arranged outside the chip mounting portion such that the common leads surround the chip mounting portion and coupled to the suspending leads via first coupling portions; a first wire electrically coupling an electrode of the semiconductor chip with a respective one of the plurality of leads; a second wire electrically coupling an electrode of the semiconductor chip with one of the common leads, and a sealing body for sealing the semiconductor chip, the chip mounting portion, the first wire and the second wire, wherein a first slit is formed in each suspending lead, and wherein a width of each common lead is smaller than a width of a portion of each suspending lead that includes the respective first slit.