Patent ID: 8207019

Claim:
A method of making a semiconductor chip assembly, comprising: providing a first post, a second post, a first adhesive, a second adhesive and a base, wherein the first post is adjacent to the base, extends vertically from the base in a first vertical direction and extends into a first opening in the first adhesive, the second post is adjacent to the base, extends vertically from the base in a second vertical direction opposite the first vertical direction and extends into a second opening in the second adhesive, the first adhesive contacts the base, extends vertically beyond the base in the first vertical direction and is non-solidified, the second adhesive contacts the base, extends vertically beyond the base in the second vertical direction and is non-solidified, the base is sandwiched between the posts and between the adhesives and extends laterally from the posts in lateral directions orthogonal to the vertical directions, and the first post and the first opening are located within a periphery of the second post; then flowing the first adhesive; flowing the second adhesive; solidifying the adhesives; then depositing a first plated layer on the first post and the first adhesive, wherein the first plated layer covers the first post in the first vertical direction; depositing a second plated layer on the second post and the second adhesive, wherein the second plated layer covers the second post in the second vertical direction; providing a conductive trace that includes a pad, a terminal and an electrical interconnect, wherein the pad extends vertically beyond the base in the first vertical direction and includes a selected portion of the first plated layer, the terminal extends vertically beyond the base in the second vertical direction and includes a selected portion of the second plated layer, the electrical interconnect extends through the adhesives and the base and is spaced from and electrically isolated from the base and an electrically conductive path between the pad and the terminal includes the electrical interconnect; providing a heat spreader that includes the posts and the base; then mounting a semiconductor device on the first post, wherein the semiconductor device extends vertically beyond the base in the first vertical direction, extends laterally within peripheries of the posts and the first post is sandwiched between the semiconductor device and the base; electrically connecting the semiconductor device to the pad, thereby electrically connecting the semiconductor device to the terminal; and thermally connecting the semiconductor device to the first post, thereby thermally connecting the semiconductor device to the second post.