Multichip ic devices in glass medium and including an interconnect bridge die

Abstract

Multi-die packages including at least one glass substrate within a space between two adjacent IC dies or surrounding an interconnect bridge die. The various IC dies may be placed within recesses formed in the glass substrate. The IC die and glass substrate, along with any conductive vias extending through the glass substrate may be planarized. The bridge die may be directly bonded or soldered to the adjacent IC dies, providing fine pitch interconnect. The opposite side of the adjacent IC dies and glass substrate may be attached to a host component or may be built up with package dielectric material. Metallization features formed on the second side of the glass substrate may electrically interconnect the IC dies to package interconnect interfaces that may be further coupled to a host with solder interconnects.