Patent ID: 6414385
Filing Date: 2002-07-02
Classification: H01L

Abstract:
A Quad Flat Non-Lead package of semiconductor comprising:a chip having an active surface and a corresponding back surface opposite to the first surface, wherein the active surface comprises a plurality of bonding pad; a die pad having a first surface and a corresponding second surface, wherein the first surface of the die pad is smaller than the area of the chip but larger than the second surface of the die pad and the first surface of the die pad is bonded to the active surface of the chip while those bonding pads are exposed; a plurality of leads spaced around the chip; a plurality of bonding wires, electrically connected those bonding pads to a top surface of those leads respectively; and a molding compound for encapsulating the chip, the die pad, those bonding wires, and the leads to form a package structure, such that at least one surface of each lead is exposed from a bottom surface of the package structure.