Patent ID: 8736068
Filing Date: 2014-05-27
Classification: H01L

Abstract:
1. A circuit arrangement, comprising: first, second and third semiconductor dies physically and electrically coupled to one another in a stack, each semiconductor die including opposing faces, wherein at least one face of each semiconductor die includes circuit logic integrated thereon and defining a circuit layer, and each semiconductor die including an array of conductive through vias extending through such semiconductor die; a first electrical/physical interconnect physically and electrically coupling the first and second semiconductor dies with one another using a wafer-wafer bonding process; and a second electrical/physical interconnect physically and electrically coupling the second and third semiconductor dies with one another; wherein each semiconductor die includes an array of contact pads disposed on at least one face of such semiconductor die and topographically aligned with the array of conductive through vias, wherein the first electrical/physical interconnect includes a first array of electrical conductors extending between topographically aligned contact pads on the first and second semiconductor dies, wherein the second electrical/physical interconnect includes a second array of electrical conductors extending between topographically aligned contact pads on the second and third semiconductor dies, wherein the array of contact pads disposed on each semiconductor die is a regular array, wherein a first subset of the contact pads in the array of contact pads on each semiconductor die are configured as data-carrying contact pads that are electrically coupled to data-carrying through vias, wherein a second subset of the contact pads in the array of contact pads on each semiconductor die are configured as power-carrying contact pads that are electrically coupled to power-carrying through vias, and wherein a third subset of the contact pads are dummy contact pads that are not topographically aligned with any of the conductive through vias.