Patent ID: 8877567

Claim:
A method of making a semiconductor device, comprising: providing an interposer frame including, (a) providing a substrate, (b) forming a conductive via in the substrate, and (c) forming a first conductive layer over the conductive via; forming a first insulating layer over the first conductive layer; forming a second conductive layer over the substrate opposite the first conductive layer, the second conductive layer being electrically connected to the conductive via; forming a second insulating layer over the second conductive layer; forming a third conductive layer over the second insulating layer electrically connected to the second conductive layer; providing a die attach area on the substrate; forming a plurality of discrete uniform height pillars over the interposer frame at corners of the die attach area with physical space extending to the interposer frame between the discrete uniform height pillars; providing a semiconductor die including a plurality of bumps; disposing the semiconductor die over the discrete uniform height pillars which provides a fixed uniform standoff distance between the semiconductor die and the interposer frame; bonding the bumps of the semiconductor die to the first conductive layer of the interposer frame while the discrete uniform height pillars maintain the fixed uniform standoff distance; and depositing an encapsulant between the semiconductor die and interposer frame by injecting the encapsulant through the physical space between the discrete uniform height pillars.