Patent ID: 7300822

Claim:
A method for packaging an electronic device, comprising: mounting the electronic device on a first side of a substrate, the electronic device having two long edges and two short edges and each device edge being parallel to one of four edges of the substrate, wherein each of the two short device edges is substantially closer to its parallel substrate edge than each of the two long device edges is to its parallel substrate edge so that there is more space on the substrate between each of the two long device edges and its parallel substrate edge than between each of the two short device edges and its parallel substrate edge; and mounting a heat spreader on the first side of the substrate covering the electronic device, wherein the heat spreader has a lid and only two parallel sidewalls extending therefrom and each of the two parallel sidewalls is attached to the first side of the substrate in one of the two spaces on the substrate between the two long device edges and their parallel substrate edges.