Patent ID: 9214433
Filing Date: 2015-12-15
Classification: H01L

Abstract:
1. An apparatus, comprising: an interposer having one or more conductive layers disposed on a top surface of an interposer substrate, the interposer substrate having a plurality of conductors and a plurality of passive charge attracting structures; wherein the plurality of passive charge attracting structures are configured to protect at least one integrated circuit die to be coupled to the interposer to provide a stacked die; wherein the plurality of conductors include a plurality of through-substrate vias formed through the interposer substrate and coupled within the interposer substrate to the plurality of passive charge attracting structures through one or more conductive layer; a first well formed in the interposer substrate; a first region formed in the first well; a second region formed in the interposer substrate; wherein a first portion of the second region extends into the first well and a second portion of the second region does not extend into the first well; a first contact formed for conducting charge therefrom to the first region; a second contact formed for conducting charge therefrom to the second region; wherein the second portion of the second region and the second contact in combination provide a first charge attracting structure of the plurality of passive charge attracting substrates to attract first charged particles; and wherein the first well, the first region, the first portion of the second region, and the first contact in combination provide a second charge attracting structure of the plurality of passive charge attracting substrates to attract second charged particles.