US 2020/0027660 A1 · MULTILAYER CAPACITOR

Abstract

A multilayer capacitor includes a capacitor body, a first external electrode, and a second external electrode. The capacitor body includes a plurality of first and second internal electrodes alternately stacked with dielectric layer interposed therebetween. The first and second external electrodes are electrically connected to the first and second internal electrodes, respectively. A first Schottky layer is Schottky-junctioned to an interface between the dielectric layer and the first internal electrode in the capacitor body. A second Schottky layer is Schottky-junctioned to an interface between the dielectric later and the second internal electrode in the capacitor body. The work function values of the first and second Schottky layers is higher than the work function values of the first and second internal electrodes.

Claims23

Dependent claims

A multilayer capacitor comprising:

a capacitor body including a plurality of first and second internal electrodes alternately stacked with dielectric layers interposed therebetween;
a first external electrode and a second external electrode electrically connected to the first and second internal electrodes, respectively;
a first Schottky layer at an interface between one of the plurality of first internal electrodes and one of the dielectric layers;
and
a second Schottky layer at an interface between one of plurality of second internal electrodes and another one of the dielectric layers,
wherein first and second work function values of the respective first and second Schottky layers are both higher than a third work function value of the first and second internal electrodes.

3 more elements

A multilayer capacitor comprising:

an active area, including a plurality of first and second internal electrodes, a plurality of dielectric layers, and a plurality of Schottky layers, with the plurality of Schottky layers respectively interposed between dielectric layers and internal electrodes of the plurality of first and second internal electrodes;
an upper cover including one or more dielectric layers above an upper surface of the active area in a stacking direction;
a lower cover including one or more dielectric layers below a lower surface of the active area in the stacking direction;
a first external electrode connection portion on a first side surface, substantially parallel to the stacking direction, of the active area, upper cover, and lower cover, and electrically connected to the first internal electrodes;
a second external electrode connection portion on a second side surface, substantially parallel to the stacking direction and opposing the first side surface, of the active area, upper cover, and lower cover, and electrically connected to the second internal electrodes,
wherein the Schottky layers have a first work function value, the plurality of first and second internal electrodes have a second work function value, and the first work function value is greater than the second work function value.

3 more elements

Dependencies are inferred from the claim text.

Multilayer capacitor

Life of this patent

Multilayer capacitor

Life of this patent

Abstract

Claims23