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A new 3-D integration concept based on reconfigured wafer-to-wafer stacking is proposed. Using reconfigured wafer-to-wafer 3-D integration, many known-good dies (KGDs) can be simultaneously and precisely self-assembled by water surface tension onto a carrier wafer, which is called a reconfigured wafer. In addition, the KGDs on the reconfigured wafer can be transferred and bonded to another target...
Successful 3D integration of a stacked chip fabricated by a “chip-level through-silicon-via (TSV)” process was confirmed by inter-chip data transmission. According to measurements of the electrical properties of the stacked chip, structural design of TSV contact wiring is very important for chip-level/via-last TSV integration. That is, the design influences TSV contact resistance, TSV coupling capacitance,...
For rapid prototyping of system LSIs based on three-dimension (3D) integration using through-silicon-vias (TSVs), a TSV fabrication technology for a diced chip with copper/low-k interconnections (called “chip-level TSV integration”) was developed. The two key processes of this technology are uniform substrate thinning in chip form and via-last TSV formation for nanometer-sized copper/low-k interconnection...
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