Patent ID: 7700988

Claim:
A metal-insulator-metal (MIM) capacitor, comprising: a bottom electrode; a top electrode disposed over the bottom electrode; and a capacitor dielectric layer disposed between the top electrode and the bottom electrode, wherein the capacitor dielectric layer comprises: a plurality of titanium oxide (TiO 2 ) layers; and at least one tetragonal structure material layer disposed between the titanium oxide layers, wherein each tetragonal structure material layer has the same thickness, wherein the material constituting the tetragonal structure material layers includes lead oxide (PbO 2 ), tin oxide (SnO 2 ), barium oxide (BaO 2 ) or strontium oxide (SrO 2 ), wherein one of the plurality of TiO 2 layers is directly contacted with the top electrode, and another of the plurality of TiO 2 layers is directly contacted with the bottom electrode.