Patent ID: 6084777
Filing Date: 2000-07-04
Classification: H01L

Abstract:
A ball grid array package comprising:a heat spreader;a stiffener having a cavity formed therein and mounted to the heat spreader but said stiffener is electrically isolated from said heat spreader, the stiffener serving as a ground plane;a substrate having a first surface, a second surface, and a cavity formed therein, the substrate having a signal plane and a power plane on the first surface and mounted to the stiffener through the second surface, the substrate further having at least one hole formed from the first surface to the second surface and a plurality of solder balls to provide an external connection to the ball grid array package;a die mounted to a portion of the heat spreader exposed through the cavity provided in the stiffener, the die having a signal die bond pad coupled to the signal plane, a power die bond pad coupled to the power plane, and a ground die bond pad coupled to the stiffener which serves as the ground plane;and wherein at least one of said solder balls is mounted on said at least one hole in said substrate so as to form a connection with said stiffener through said at least one hole in said substrate.