Patent ID: 8035951

Claim:
A capacitor device having a number of capacitive elements, comprising: a first capacitive element comprising: a pair of first conductive layers being opposed to each other, at least one first dielectric layer formed on a surface of at least one of the first conductive layers, and a second dielectric layer being sandwiched between the first conductive layers via the at least one first dielectric layer; and a second capacitive element comprising: a pair of second conductive layers being opposed to each other, at least one third dielectric layer formed on a surface of at least one of the second conductive layers, and a fourth dielectric layer being sandwiched between the second conductive layers via the at least one third dielectric layer, wherein the at least one first dielectric layer has a first dielectric constant and the at least one third dielectric layer has a third dielectric constant, the third dielectric constant being different from the first dielectric constant.