Patent ID: 8378372
Filing Date: 2013-02-19
Classification: H01L,H05K

Abstract:
1. A semiconductor chip assembly, comprising: a semiconductor device; an adhesive that includes an opening; a heat spreader that includes a post and a base, wherein the post is adjacent to the base and extends above the base in an upward direction, and the base extends below the post in a downward direction opposite the upward direction and extends laterally from the post in lateral directions orthogonal to the upward and downward directions; and a substrate that includes a pad, a terminal, a routing line, first and second vias and a dielectric layer, wherein the pad and the terminal extend above the dielectric layer, the routing line extends below the dielectric layer, the vias each extend through the dielectric layer to the routing line, an electrically conductive path between the pad and the terminal includes the first via, the routing line and the second via, and an aperture extends through the substrate; wherein the semiconductor device is mounted on the heat spreader, overlaps the post, is electrically connected to the pad and thereby electrically connected to the terminal, and is thermally connected to the post and thereby thermally connected to the base; wherein the adhesive is mounted on and extends above the base, extends into a gap in the aperture between the post and the substrate, extends across the dielectric layer in the gap and is sandwiched between the post and the dielectric layer, between the base and the dielectric layer and between the base and the routing line; wherein the substrate is mounted on the adhesive and extends above the base, and the routing line is embedded in the adhesive; and wherein the post extends into the opening and the aperture and above the dielectric layer, and the base extends below the semiconductor device, the adhesive and the substrate.