Patent ID: 8193556

Claim:
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 and integral with 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, covers the post in the downward direction and extends laterally from the post in lateral directions orthogonal to the upward and downward directions; and a conductive trace that includes a pad and a terminal; wherein a cavity in the post faces in the upward direction, extends into the opening, is defined by and laterally surrounded by the post and is covered by the post in the downward direction; wherein the semiconductor device extends into the cavity and is covered by the cavity in the downward direction, 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, contacts the post and the base, is located outside the cavity, extends between the post and the pad, extends laterally from the post to or beyond the terminal and is sandwiched between the base and the pad; wherein the conductive trace is located outside the cavity; and wherein the post extends into the opening and is sandwiched between the base and the cavity and between the adhesive and the cavity, and the base extends below the semiconductor device and the pad.