Patent ID: 7141867
Filing Date: 2006-11-28
Classification: H01L

Abstract:
1. A quad flat non-leaded package comprising: a lead frame having a plurality of leads, a die pad, a plurality of supporting bars and an external ring, wherein the leads are disposed at the periphery of the die pad, the die pad has a top surface and a bottom surface being opposite to the top surface, the supporting bars are used for supporting the die pad, the external ring is disposed around the die pad and is connected to the supporting bars, wherein there is a gap between the external ring and the die pad; a semiconductor chip having an active surface and a back surface being opposite to the active surface, wherein the active surface has a plurality of bonding pads thereon, the area of the semiconductor chip is larger than that of the die pad, the active surface is attached onto the top surfaces of the die pad and the external ring, and the bonding pads are exposed via the gap between the external ring and the die pad; a plurality of bonding wires for electrically coupling the bonding pads to the leads, and the bonding pads to the external ring, respectively; and a molding compound encapsulating the lead frame, the semiconductor chip and the bonding wires, wherein parts of the leads of the lead frame are exposed to the outside of the molding compound.