Patent ID: 7781865
Filing Date: 2010-08-24
Classification: H01L

Abstract:
1. An MIM (Metal-Insulator-Metal) capacitor, the MIM capacitor comprising: a plurality of lower capacitor electrode portions and a lower metal interconnection on a substrate, the lower capacitor electrode portions being spaced apart from one another; a barrier metal layer on the plurality of lower capacitor electrode portions, the barrier metal layer covering a top surface and sidewalls of the lower capacitor electrode portions and the substrate between the lower capacitor electrode portions; a conformal insulating layer on the barrier metal layer such that a gap exists in the conformal insulation layer between the lower capacitor electrode portions; an upper capacitor electrode on the conformal insulating layer and in the gap between the lower capacitor electrode portions; a dielectric layer on the lower metal interconnection and having a via hole therein; and a plug in the via hole.