Patent ID: 6700077
Filing Date: 2004-03-02
Classification: H01L,H05K

Abstract:
A packaging substrate with electrostatic discharge protection, comprising:a top side and a bottom side; at least one die pad for supporting a die, at least one mold gate formed at the top side of the substrate, each mold gate extending from an edge of the substrate to the die pad to inject mould compound into the die pad; a first copper-mesh layer formed on the periphery of the top side of the substrate, the first copper-mesh layer electrically connected to the mold gate; a second copper-mesh layer formed on the periphery of the bottom side of the substrate; a dielectric layer formed between the first copper-mesh layer and the second copper-mesh layer; at least one metal pad formed on the periphery of the bottom side of the substrate and electrically connected to the second copper-mesh layer, the metal pad contacting and electrically connected to a supporter for supporting the substrate; whereby, when static electricity is generated during the molding process, static electric charges are conducted via the mold gate to the first copper-mesh layer and then discharged via the supporter.