Patent ID: 7508649

Claim:
A multi-layered dielectric film comprising: a single component oxide layer; and composite components oxide layers each of the composite components oxide layers being without a layered structure and formed along either side of the single component oxide layer, further wherein the composite components oxide layers consist of a composite components oxide represented by the general chemical formula M1 x M2 y O z , wherein M1 and M2 may be the same or different components selected from the group consisting of aluminum (Al), hafnium (Hf), zirconium (Zr), lanthanum (La), tantalum (Ta), strontium (Sr), barium (Ba), lead (Pb), chromium (Cr), molybdenum (Mo), tungsten (W), titanium (Ti), yttrium (Y), and manganese (Mn), and wherein x, y and z have numerical values that denote the stoichiometric ratio of M1, M2 and O.