Patent ID: 8536697

Claim:
A semiconductor die assembly, comprising: a semiconductor die; a heat spreader die holder for receiving the semiconductor die through an opening having a greater width and thickness than the semiconductor die; wherein: the semiconductor die is at least partially within the heat spreader die holder; at least 50% of a first major side of the semiconductor die and at least 50% of a second major side of the die are covered by thermally conductive material of the heat spreader die holder; the semiconductor die includes an open region having a plurality of electrically conductive connector structures; the open region of the semiconductor die is not covered by the thermally conductive material; and a substrate, the heat spreader die holder attached to the substrate, the substrate including a plurality of electrically conductive structures electrically coupled to the plurality of electrically conductive connector structures at the open region, wherein the first major side and the second major side of the semiconductor die are parallel to a major side of the substrate.