Patent ID: 7528435

Claim:
A semiconductor construction, comprising: a semiconductor substrate; a first capacitor electrode supported by the semiconductor substrate; a second capacitor electrode supported by the semiconductor substrate and capacitively coupled with the first capacitor electrode; capacitor dielectric between the first and second capacitor electrodes; wherein the first capacitor electrode comprises a layer consisting essentially of metal nitride, said layer being directly against the capacitor dielectric; wherein the capacitor dielectric comprises a first composition and a second composition different from the first composition; the second composition being between the first composition and first capacitor electrode, and being directly against the first composition and the layer consisting essentially of metal nitride; the second composition consisting essentially of metal, oxygen and nitrogen; wherein the second composition has a thickness of less than or equal to about 20 Å; wherein the layer consisting essentially of metal nitride has a thickness of at least about 100 Å; and wherein the first composition comprises one or both of aluminum oxide and hafnium oxide.