Patent ID: 7938515

Claim:
A dielectric film structure having a substrate and a dielectric film provided on said substrate, wherein: said dielectric film has (110) face orientation with respect to said substrate; and a value w regarding said dielectric film is a real number greater than 2 in the following equation: w =( C 110 /C 00m )×( W 00m /W 110 ), where C 110 is a count number of a peak of a (110) face of said dielectric film in an Out-of-plane X ray diffraction measurement, C 00m is a count number of a peak of a (00 m) face of said dielectric film in an In-plane X ray diffraction measurement, m being a natural number selected so that C 00m becomes maximum, W 110 is a half-value width of a peak of the (110) face of said dielectric film in an Out-of-plane rocking curve X ray diffraction measurement, and W 00m is a half-value width of a peak of the (00m) face of said dielectric film in an In-plane rocking curve X ray diffraction measurement.