Patent ID: 8143660
Filing Date: 2012-03-27
Classification: C23C,H01L

Abstract:
1. A capacitor of a semiconductor device, the capacitor comprising: an interlayer dielectric (ILD) film on a semiconductor substrate, the ILD film including a conductive plug therein; a lower electrode formed on the ILD film; an AHO ((Al an upper electrode formed on the AHO ((Al an oxidation barrier film formed between the lower electrode and the AHO ((Al a dielectric film having a dielectric constant that is higher than that of the AHO ((Al wherein the dielectric film is an HfO wherein the dielectric film is directly in contact with the upper electrode, and wherein the lower electrode, the oxidation barrier film and the AHO film include a recess above the conductive plug, and the recess is filled by the upper electrode.