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Novel through-silicon via technologies for 3D system integration

To circumvent the performance and energy bottlenecks due to interconnects, novel interconnect solutions are needed both at the package and die levels. This paper reports (1) novel photodefined polymer-embedded vias within silicon interposers for improved through-silicon via insertion loss, and (2) ultrahigh density low-capacitance nanoscale TSVs with 100 nm diameter and 20:1 aspect ratio for fine-grain 3D IC implementation.