Patent ID: 6849933
Filing Date: 2005-02-01
Classification: H01L

Abstract:
1. A semiconductor device comprising: a semiconductor chip having a main surface and a rear surface on the side opposite to the main surface, with a semiconductor element and a plurality of banding pads being formed on the main surface; a plurality of inner loads arranged along a periphery of the semiconductor chip; a plurality of bonding wires which connect the plural bonding pads and the plural inner leads electrically with each other; a chip mounting portion having a chip supporting surface for supporting the semiconductor chip end a rear surface located on the side opposite to the chip supporting surface and exposed to the exterior; a chip bonding material disposed between the chip supporting surface and the rear surface of the semiconductor chip to bond the semiconductor chip and the chip mounting portion with each other; a resin body which seals the semiconductor chip, the plural inner leads, the plural bonding wires, and the chip supporting surface of the chip mounting portion; and a plurality of outer leads integral with the plural inner leads and projecting to the exterior from the resin body, wherein a protruding portion protruding from the chip supporting surface is formed in a frame shape along the periphery of the semiconductor chip on the chip supporting surface of the chip mounting portion.