Patent ID: 7053435
Filing Date: 2006-05-30
Classification: H01L

Abstract:
1. An integrated circuit device comprising: a substrate; a first conductive electrode on the substrate, the first conductive electrode having an electrode wall extending away from the substrate; an insulating spacer on the electrode wall wherein portions of the electrode wall are free of the insulating spacer between the substrate and the insulating spacer, and wherein portions of the electrode most distant from the substrate are free of the insulating spacer; a capacitor dielectric layer on portions of the electrode wall free of the spacer between the substrate and the insulating spacer; and a second conductive electrode on the capacitor dielectric layer opposite the electrode wall between the substrate and the insulating spacer, wherein a thickness of the insulating spacer between the first and second conductive electrodes is greater than a thickness of the capacitor dielectric layer between the first and second conductive electrodes; wherein the electrode wall includes a recessed portion and wherein the insulating spacer is on the recessed portion of the electrode wall.