3D integration: Status and requirements

According to the increasing application driven demands on functionality, performance, miniaturization and reliability for microelectronic systems, System in Packages (SiP) using 3D integration are key elements for advanced micro-electronic packaging. Key elements for 3D wafer level SiPs are the formation of Through Silicon Vias (TSVs) and their process integration into active devices as well as silicon interposer as a key enabler for 3D Systems.