CAPACITOR

• US 20160064146A1
• Filed: 08/21/2015
• Published: 03/03/2016
• Est. Priority Date: 09/01/2014
• Status: Active Grant

• Current Assignee: Point Engineering Co. Ltd.
• Original Assignee: Point Engineering Co. Ltd.
• Inventors: AHN, Bum Mo, PARK, Seung Ho, SONG, Tae Hwan
• Granted Patent: US 9,773,618 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H01G 4/005 Electrodes
• CPC Class Codes: H01G 4/012 Form of non-self-supporting electrodes
• CPC Class Codes: H01G 4/12 Ceramic dielectrics H01G4/085 takes precedence
• CPC Class Codes: H01G 4/228 Terminals
• CPC Class Codes: H01G 4/30 Stacked capacitors H01G4/33 takes precedence
• CPC Class Codes: H01G 4/38 Multiple capacitors, i.e. structural combinations of fixed capacitors

Abstract

The present invention relates to a capacitor. The capacitor includes a substrate; a dielectric layer formed on the substrate; and an electrode layer comprising a first electrode layer and a second electrode layer formed on the dielectric layer, wherein the first electrode layer and the second electrode layer are separated from each other, and at least a portion of the first electrode layer and at least a portion of the second electrode layer are disposed on a same surface. With this configuration, applying the electricity becomes easy, and since the first and the second electrode layers function as the electrodes being charged with different polarity electrical charges respectively, manufacturing thereof becomes easy, and the structure thereof is simple.

Claims

1. A capacitor comprising:

a substrate;

a dielectric layer formed on the substrate; and

an electrode layer comprising a first electrode layer and a second electrode layer formed on the dielectric layer, wherein the first electrode layer and the second electrode layer are separated from each other, and at least a portion of the first electrode layer and at least a portion of the second electrode layer are disposed on a same surface.

2. The capacitor according to claim 1, wherein a portion which separates the first electrode layer and the second electrode layer is disposed at an upper portion or a lower portion of the substrate.

3. The capacitor according to claim 1, wherein the first electrode layer and the second electrode layer are formed so as to have different areas from each other on the same surface.

4. The capacitor according to claim 1, wherein the substrate is comprised of a metallic material capable of being anodized, and the dielectric layer is comprised of an anodized layer.

5. The capacitor according to claim 1, wherein the substrate is comprised of a material having a dielectric property.

6. The capacitor according to claim 1, wherein the dielectric layer comprises an upper dielectric layer and a lower dielectric layer respectively formed on an upper surface of the substrate and the lower surface of the substrate,

the electrode layer comprises an upper electrode layer formed on an upper surface of the upper dielectric layer and an lower electrode layer formed on a lower surface of the lower dielectric layer, and

the upper electrode layer and the lower electrode layer are electrically connected to each other.

7. The capacitor according to claim 6, wherein a vertically penetrating through hole is formed at the substrate, and

an internal dielectric layer adjacent to the upper dielectric layer and the lower dielectric layer is formed in the through hole, and

a connecting electrode layer electrically connecting the upper electrode layer and the lower electrode layer is located inside the internal dielectric layer.

8. The capacitor according to claim 6, further comprising a side electrode layer formed on a side surface of the substrate so as to connect the upper electrode layer and the lower electrode layer.

9. The capacitor according to claim 6, further comprising:

a side dielectric layer formed on a side surface of the substrate so as to connect the upper dielectric layer and the lower dielectric layer,

wherein a side electrode layer is formed on the side dielectric layer, and the upper dielectric layer and the lower dielectric layer are connected to the side electrode layer.

10. A capacitor comprising a plurality of unit capacitors sequentially stacked, wherein each of the plurality of unit capacitors includes:

a substrate;

a dielectric layer formed on the substrate; and

an electrode layer comprising a first electrode layer and a second electrode layer formed on the dielectric layer, wherein the first electrode layer and the second electrode layer are separated from each other, and at least a portion of the first electrode layer and at least a portion of the second electrode layer are disposed on a same surface.

11. The capacitor according to claim 10, wherein an upper portion and a lower portion of the electrode layer are connected by applying heat and pressure.

12. The capacitor according to claim 10, wherein an upper portion and a lower portion of the electrode layer is connected through a conductive adhesive material.

13. A capacitor comprising a plurality of unit capacitors formed on a substrate, wherein each of the plurality of unit capacitors includes:

a dielectric layer; and

an electrode layer comprising a first electrode layer and a second electrode layer formed on the dielectric layer, wherein the first electrode layer and the second electrode layer are separated from each other, and at least a portion of the first electrode layer and at least a portion of the second electrode layer are disposed on a same surface.

14. The capacitor according to claim 13, wherein the plurality of unit capacitors are two unit capacitors having different capacitances.