2013 · 16 citations · 4 references
EngineeringManufacturing EngineeringManufacturing ProcessesMicrofabricationSemiconductor DevicesChip PackagingIntegrated Circuit DesignIntegrated Circuit FabricationVery-large-scale Integration LayoutWafer Bonding3D Integrated CircuitsAdvanced PackagingBondingBonding Process OptimizationProcess Flow ImprovementTemporary Bonding LayersThree-dimensional IntegrationThrough-silicon Vias
Fine-pitch backside via last through silicon via (TSV) process flow is demonstrated as a qualified candidate to be used in the construction of 3D-IC structure. Glue and its bonding conditions are critical to the final yield of the process. Different glues and temporary bonding conditions are investigated to find out the optimized stable process flow. Different daisy chain lengths are used to evaluate the maturity of the backside via last TSV process.
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Chien-Ying Wu, Shang-Chun Chen, Pei-Jer Tzeng et al. · Journal of Microelectronics and Electronic Packaging · 2012 · 19 citations · Full text