Patent ID: 8411411
Filing Date: 2013-04-02
Classification: H01G

Abstract:
1. A thin-film capacitor comprising: a dielectric layer deposited on a base electrode; an upper electrode layer deposited on the dielectric layer; a pair of terminal electrodes each including an adhesion layer, a seed layer deposited on the adhesion layer, and a plating layer provided on the seed layer; an insulating layer provided between the upper electrode layer and the terminal electrodes for isolating the upper electrode layer from the terminal electrodes; a first conductive layer that extends between the upper electrode layer and a first terminal electrode of the pair of terminal electrodes and extends through the insulating layer so as to be in contact with the adhesion layer of the first terminal electrode for electrically connecting the upper electrode layer and the first terminal electrode, and a second conductive layer that extends between the base electrode and a second terminal electrode of the pair of terminal electrodes and extends through the insulating layer so as to be in contact with the adhesion layer of the second terminal electrode for electrically connecting the base electrode and the second terminal electrode, wherein a composition of the conductive layers differs from that of the adhesion layers of the terminal electrodes, and a reducing power of the conductive layers to the dielectric layer is smaller than that of the adhesion layers.