Patent ID: 7544987
Filing Date: 2009-06-09
Classification: C23C,H01L

Abstract:
1. A high dielectric structure formed as a portion of a thin film capacitor element over a portion of a conductive plate on a portion of a substrate, the high dielectric structure comprising a diffusion barrier contacting the conductive plate on the portion of the substrate comprising primarily nitrides and silicides of tungsten, a first layer of material including tungsten oxide in a form of a mixture of tungsten oxides directly contacting at least a portion of the diffusion barrier on the conductive plate on the portion of the substrate, a second layer of material including one of titanium oxide and tantalum oxide and titanium oxide mixed with at least some tungsten oxide, the second layer of material contacting a portion of the first layer of material, and a third layer of material forming a conductive plate contacting the second layer of material.