Patent ID: 8618640
Filing Date: 2013-12-31
Classification: H01L

Abstract:
1. A passive interposer apparatus with a shielded through silicon via (TSV) configuration, the apparatus comprising: a p-doped substrate, wherein at least an upper portion of the p-doped substrate is heavily p-doped and extends substantially across an entirety of the p-doped substrate; an interlayer dielectric layer (ILD) disposed over the upper portion of the p-doped substrate; a plurality of through silicon vias (TSVs) formed through the ILD and the p-doped substrate, wherein the plurality of TSVs electrically couple respective first metal contact pads above the ILD to a first set of bump structures below the p-doped substrate; and a plurality of shielding lines electrically coupling respective second metal contact pads to the upper portion of the p-doped substrate, wherein the shielding lines are disposed between adjacent TSVs of the plurality of TSVs.