Configurable interposer

摘要

A modularized interposer includes a plurality of interposer units that are assembled to provide a complete set of electrical connections between two semiconductor chips. At least some of the plurality of interposer units can be replaced with other interposer units having an alternate configuration to enable selection of different functional parts of semiconductor chips to be connected through the modularized interposer. Bonding structures, connected to conductive metal pads located at peripheries of neighboring interposer units and an overlying or underlying portion of a semiconductor chip, can provide electrical connections between the neighboring interposer units. The interposer units can be provided by forming through-substrate vias (TSV's) in a substrate, forming patterned conductive structures on the substrate, and cutting the substrate into interposers.

主权项

1. A semiconductor structure comprising:
an array of interposer units, wherein at least one interposer unit in said array is conductively connected to a first semiconductor chip and a second semiconductor chip, and each interposer unit in said array is not of integral construction with any other interposer unit in said array; first solder balls and second solder balls, wherein each of said first solder balls contacts a lower contact pad of an interposer unit and a first contact pad of said first semiconductor chip, and each of said second solder balls contacts an upper contact pad of said interposer unit and a second contact pad of said second semiconductor chip; and a contiguous molding compound structure encapsulating said array of interposer units, wherein each of said first solder balls and said second solder balls and each of said at least one interposer units in said array of interposer units are embedded entirely in said contiguous molding compound structure.