Patent ID: 8399776

Claim:
A semiconductor package, comprising: a patterned base, having a plurality of apertures, and comprising a glass fiber reinforced material; a patterned metal layer, disposed on the patterned base, the patterned metal layer having an upper surface and a lower surface, wherein parts of the lower surface of the patterned metal layer are exposed by the apertures of the patterned base to form a plurality of lower contact pads for electrical connection externally, and parts of the upper surface of the patterned metal layer correspond to a plurality of upper contact pads and to a die pad which is a continuous metal body; a first conductive, surface finish layer, disposed on the upper contact pads, wherein a portion of the first conductive, surface finish layer is wider than the upper contact pad beneath the portion of the first conductive, surface finish layer, and another portion of the first conductive, surface finish layer is disposed on the die pad, and is wider than the die pad; a semiconductor device, disposed over the patterned metal layer and electrically connected to the first conductive, surface finish layer; and a molding compound encapsulating the semiconductor device.