| 摘要 |
PROBLEM TO BE SOLVED: To provide a dielectric capacitor displaying a dielectric characteristic which exhibits little deterioration due to aging. SOLUTION: The dielectric capacitor is provided with a substrate, a lower electrode constituted of an iridium layer composed of columnar crystals formed on an insulated surface on the substrate and an iridium oxide layer formed between the columnar crystals by oxidizing the iridium layer, a dielectric layer which is formed on the lower electrode and which is constituted of a ferroelectric or a dielectric, having high permittivity and an upper electrode formed on the dielectric layer. |
