Patent ID: 7271479
Filing Date: 2007-09-18
Classification: H01L

Abstract:
1. An integrated circuit (IC) package, comprising: a substrate including a plurality of contact pads on a first surface electrically coupled through the substrate to a plurality of solder ball pads on a second surface of the substrate, wherein the substrate has a first width; an IC die having first and second opposing surfaces, wherein the second surface of the IC die is an active surface of the IC die, and wherein the second surface of the IC die is mounted to the first surface of the substrate, and wherein the IC die has a second width that is less than or equal to the first width; and a heat spreader coupled to the first surface of the IC die, wherein the heat spreader includes a portion that at least partially laterally surrounds the substrate, wherein the heat spreader includes a step having a protruded portion that contacts the first surface of the substrate, and wherein the heat spreader has an opening having a third width that is greater than the first width.