CAPACITOR AND METHOD OF FABRICATING THE SAME

• US 20150022939A1
• Filed: 10/10/2012
• Published: 01/22/2015
• Est. Priority Date: 11/24/2011
• Status: Active Grant

• Current Assignee: LG Innotek Company Limited (LG Corporation)
• Original Assignee: LG Innotek Company Limited (LG Corporation)
• Inventors: Ji, Chil Young, Park, Hyun Kyu, Seo, Sang Won, Kwon, Seung Hwa, Ko, Yong Jun, Seo, Jeong Gi
• Granted Patent: US 9,455,090 B2
• Time in Patent Office: Days
• US Class Current: 361/290
• CPC Class Codes: H01G 5/011 Electrodes
• CPC Class Codes: H01G 5/0134 Solid dielectrics
• CPC Class Codes: H01G 5/16 using variation of distance between electrodes

Abstract

Disclosed are a capacitor and a method of fabricating the same. The capacitor includes a first electrode; a second electrode spaced apart from the first electrode while facing the first electrode; a driving member connected to the second electrode to move the second electrode relative to the first electrode; and an insulating connection member between the driving member and the second electrode.

Claims

1. A capacitor comprising:

a first electrode;

a second electrode spaced apart from the first electrode while facing the first electrode;

a driving member connected to the second electrode to move the second electrode relative to the first electrode; and

an insulating connection member between the driving member and the second electrode.

2. The capacitor of claim 1, wherein the second electrode is connected to the driving member through the insulating connection member.

3. The capacitor of claim 2, wherein the insulating connection member includes a metal oxide.

4. The capacitor of claim 3, wherein the insulating connection member includes an oxide, a nitride, or a polymer.

5. The capacitor of claim 2, wherein the second electrode is partially inserted into the insulating connection member.

6. The capacitor of claim 1, wherein the second electrode comprises:

a main electrode extending in a first direction; and

a plurality of sub-electrodes extending from the main electrode.

7. The capacitor of claim 6, wherein the first electrode comprises a plurality of branch electrodes corresponding to the sub-electrodes, respectively.

8. The capacitor of claim 1, further comprising a substrate for fixing the first electrode and the driving member, wherein the second electrode is moved relative to the substrate.

9. The capacitor of claim 1, wherein the driving member moves the second electrode in a first direction and a second direction different from the first direction.

10. A capacitor comprising:

a substrate;

a first electrode on the substrate;

a second electrode overlapping with the first electrode on the substrate; and

a driving member fixed to the substrate to control a distance between the first and second electrodes and an overlap area between the first and second electrodes,

wherein the first electrode comprises;

a first electrode facing a part of the second electrode; and

a third electrode spaced apart from the first electrode while facing another part of the second electrode.

11. The capacitor of claim 10, further comprising a dielectric layer between the first and second electrodes.

12. The capacitor of claim 10, wherein the driving member comprises:

a first driving electrode connected to the second electrode; and

a third driving electrode overlapping with the first driving electrode.

13. The capacitor of claim 12, further comprising an insulating connection member connected to the second electrode, wherein the first driving electrode is connected to the insulating connection member.

14. The capacitor of claim 12, wherein the driving member comprises:

a third driving electrode connected to the first driving electrode; and

a fixing part fixed to the substrate and connected to the third driving electrode.

15. The capacitor of claim 10, further comprising an insulating connection member interposed between the driving member and the second electrode, wherein the second electrode is physically connected to the driving member through the insulating connection member, and the second electrode and the driving member are electrically insulated from each other.

16. The capacitor of claim 10, further comprising an input wire connected to the first electrode and an output wire connected to the third electrode.

17. The capacitor of claim 10, wherein the driving member comprises first and second driving members spaced apart from each other, and the first and second electrodes are disposed between the first and second driving members.

18-20. -20. (canceled)

21. A capacitor comprising:

a first electrode;

a second electrode spaced apart from the first electrode while facing the first electrode;

a driving member connected to the second electrode to move the second electrode relative to the first electrode;

an insulating connection member between the driving member and the second electrode;

wherein the second electrode comprises;

a support electrode facing the first electrode; and

a protruding electrode protruding from the support electrode toward the first electrode;

wherein the driving member is connected to the support electrode through the insulating connection member.

25. The capacitor of claim 21, wherein the support electrode and the protruding electrode are integrally formed with each other.

27. The capacitor of claim 21, wherein the protruding electrode extends in one direction, and

wherein the first electrode includes a branch electrode corresponding to the protruding electrode.

22-24. -24. (canceled)

26. (canceled)

28-33. -33. (canceled)