Patent ID: 6184580
Filing Date: 2001-02-06
Classification: H01L

Abstract:
A ball grid array package with conductive leads, comprising:a first heat sink having an exposed surface, a bottom surface, and a die-attach region on the bottom surface of the first heat sink;a plurality of conductive leads with each lead divided into an inner lead portion and an outer lead portion, wherein the inner lead portion of the conductive leads are in contact with the bottom surface of the first heat sink and surrounding the die-attach region and the outer lead portion of the conductive leads extend away from the bottom surface of the first heat sink;a substrate having a first surface and a second surface, wherein the first surface is in contact with the conductive leads so that the inner lead portion of the conductive leads are sandwiched between the first heat sink and the substrate, and the second surface has a plurality of contact points;a silicon chip attached on the die-attach region on the bottom surface of the first heat sink, wherein the silicon chip has an active surface and a back surface, and the back surface is in contact with the bottom surface of the first heat sink;a plurality of bonding wires electrically connecting the inner lead portion of the conductive leads and some of the contact points on the second surface of the substrate to the active surface of the silicon chip;a plurality of solder balls mounted on some of the contact points on the second surface of the substrate, wherein the outer lead portion of the conductive leads are further used to support the ball array package when the ball array package is attached to a circuit board; anda molding compound enclosing the bonding wires, the silicon chip, the inner lead portion of the conductive leads, and the contact points electrically connected to the silicon chip.