Patent ID: 8446012
Filing Date: 2013-05-21
Classification: H01L

Abstract:
1. A semiconductor structure, comprising: a first dielectric layer over a substrate; at least one first conductive structure within the first dielectric layer, the first conductive structure comprising a cap portion extending above a level of a top surface of the first dielectric layer; at least one first dielectric spacer on at least one sidewall of the cap portion of the first conductive structure, the at least one first dielectric spacer disposed over and directly contacting an upper surface of the first dielectric layer; a second dielectric spacer disposed over and contacting an upper surface of the first dielectric layer and extending over and contacting an upper surface of the at least one first dielectric spacer; a second dielectric layer disposed over the first conductive structure; and a second conductive structure within the second dielectric layer, wherein a first portion of a bottom surface of the second conductive structure is disposed over the top surface of the first conductive structure and a second portion of the bottom surface of the conductive structure is disposed over an upper surface of the second dielectric spacer.