Patent ID: 7964938
Filing Date: 2011-06-21
Classification: H01L

Abstract:
1. A method for manufacturing a semiconductor package having an electromagnetic interference (EMI)-shielding function, comprising the steps of: a wafer sawing step of cutting a wafer with a diamond saw to separate the dice in the wafer into individual chips; a component surface-mounting step of attaching surface mounted components (SMC) on an electronic circuit; a die bonding step of bonding each of the chips on a substrate; a wire bonding step bonding a wire on both a bonding pad of the chip and a lead frame for the electrical interconnection between the chip and the substrate; a molding step of encapsulating the chip and the wire with a synthetic resin to form a mold; a first singulation step of half-cutting respective molds so as to allow a space between adjacent two molds to be depressed by a predetermined width; a sputtering step of coating a target metal formed of nickel and silver, or nickel and copper on the surface of the mold using plasma sputtering device to form an electromagnetic interference (EMI)-shielding film; and a second singulation step of full-cutting the substrate so as to allow the respective molds to be separated from each other.