Multilayer ceramic capacitor having a floating electrode

Patent metadata

Field	Value
Publication number	US-9318263-B2
Application number	US-201313935094-A
Country	US
Kind code	B2
Filing date	Jul 3, 2013
Priority date	Mar 29, 2013
Publication date	Apr 19, 2016
Grant date	Apr 19, 2016

Abstract

There is provided a multilayer ceramic capacitor including a ceramic body including a plurality of dielectric layers, first and second external electrodes; first and second internal electrodes formed to be spaced apart from each other; and a first floating electrode disposed alternately with the first and second internal electrodes in the ceramic body in a thickness direction and having both end portions thereof overlapped with the first and second internal electrodes, respectively, wherein the first floating electrode is disposed so that a length of portion of the first internal electrode overlapped with one end portion of the first floating electrode and a length of portion of the second internal electrode overlapped with the other end portion of the first floating electrode in the ceramic body are different.

First claim

What is claimed is:

1. A multilayer ceramic capacitor comprising:
a ceramic body including a plurality of dielectric layers stacked therein;
first and second external electrodes formed on both end surfaces of the ceramic body;
first and second internal electrodes formed to be spaced apart from each other on a common dielectric layer in the ceramic body so as to be exposed to both end surfaces of the ceramic body and electrically connected to the first and second external electrodes, respectively;
a first floating electrode disposed alternately with the first and second internal electrodes in the ceramic body in a thickness direction and having both end portions thereof overlapped with the first and second internal electrodes, respectively; and
a second floating electrode disposed on dielectric layers on which the first and second internal electrodes are formed in the ceramic body so as to be spaced apart from the first and second internal electrodes,
wherein the first floating electrode is disposed so that a length of a portion of the first internal electrode overlapped with one end portion of the first floating electrode and a length of a portion of the second internal electrode overlapped with the other end portion of the first floating electrode in the ceramic body are different, and
wherein the first floating electrode is formed on a single dielectric layer, and the first floating electrode is overlapped with the entirety of the second floating electrode.

2. The multilayer ceramic capacitor of claim 1 , further comprising first and second dummy electrodes formed on the dielectric layer on which the first floating electrode is formed in the ceramic body so as to be exposed to both end surfaces of the ceramic body.

Assignees

• Samsung Electro Mech

Inventors

• Seo Byung Kil

Classifications

• Y10T29/435

  Solid dielectric type · CPC title

• H01G4/12 Primary

  Ceramic dielectrics {(H01G4/085 takes precedence)} · CPC title

• H01G4/30 Primary

  Stacked capacitors (H01G4/33 takes precedence) · CPC title

• H01G4/012

  Form of non-self-supporting electrodes · CPC title