Patent ID: 8399952

Claim:
An integrated circuit device, comprising: ruthenium; a strontium titanium oxide dielectric overlying the ruthenium; and a strontium ruthenium oxide interface interposed between the ruthenium and the strontium titanium oxide dielectric; wherein the strontium ruthenium oxide interface is formed using a method comprising: performing an atomic layer deposition process using a strontium precursor as a first precursor and water vapor as a second precursor to form a first strontium oxide material on the ruthenium; performing an atomic layer deposition process using a strontium precursor as a first precursor and ozone as a second precursor to form a second strontium oxide material on the first strontium oxide material; and annealing the ruthenium, the first strontium oxide material and the second strontium oxide material to form the strontium ruthenium oxide interface.