Patent ID: 7763953
Filing Date: 2010-07-27
Classification: H01L

Abstract:
1. A semiconductor device comprising a capacitor which includes a first electrode, a second electrode, and a dielectric layer disposed between the first electrode and the second electrode, the dielectric layer comprising: a first paraelectric film formed of a material containing a first metal element and at least one kind of second metal element; a second paraelectric film disposed between the first electrode and the first paraelectric film; and a third paraelectric film disposed between the second electrode and the first paraelectric film, wherein the second paraelectric film is formed of a material containing the first metal element but not containing the second metal element, the third paraelectric film is formed of a material containing the first metal element but not containing the second metal element, wherein the capacitor comprises a plurality of the first paraelectric films, and a fourth paraelectric film disposed between each pair of the first paraelectric films, the fourth paraelectric film being formed of a material containing the first metal element but not containing the second metal element.