Multilayer capacitor having external electrode including conductive resin layer
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsJung Min KIM, Bon Seok KOO, Jung Wook SEO, Yoon Hee LEE, Kun Hoi KOO
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Abstract
A multilayer capacitor and a method of manufacturing includes a conductive resin layer of an external electrode disposed on a first electrode layer. The conductive resin layer includes a conductive connecting part and an intermetallic compound contacting the first electrode layer and the conductive connecting part. The conductive connecting part contacts a plurality of metal particles and a second electrode layer, such that the 7 equivalent series resistance (ESR) of the multilayer capacitor is decreased and warpage strength of the multilayer capacitor is improved.
Claims22
A multilayer capacitor comprising:
- a body including dielectric layers and internal electrodes;
- and
- an external electrode on one surface of the body, including:
- a first electrode layer on the one surface of the body and contacting the internal electrodes;
- a conductive resin layer on the first electrode layer and including a plurality of metal particles, a conductive connecting part surrounding the plurality of metal particles, abase resin, and an intermetallic compound contacting the first electrode layer and the conductive connecting part;
- and
- a second electrode layer on the conductive resin layer and contacting the conductive connecting part,
- wherein the intermetallic compound has a form of a plurality of islands.
A multilayer capacitor comprising:
- a body including dielectric layers and internal electrodes;
- and
- an external electrode disposed on one surface of the body, including:
- a first electrode layer disposed on one surface of the body and contacting the internal electrodes;
- a conductive resin layer on the first electrode layer and including a conductive connecting part including a low-melting-point metal, an intermetallic compound contacting the first electrode layer and the conductive connecting part, and a base resin covering the conductive connecting part and the intermetallic compound;
- and
- a second electrode layer on the conductive resin layer and contacting the conductive connecting part,
- wherein the intermetallic compound has a form of a plurality of islands.
A multilayer capacitor comprising:
- a body including dielectric layers and internal electrodes;
- and
- an external electrode on one surface of the body, including:
- a first electrode layer on the one surface of the body and contacting the internal electrodes;
- a conductive resin layer on the first electrode layer and including a plurality of metal particles, a conductive connecting part surrounding the plurality of metal particles, abase resin, and an intermetallic compound contacting the first electrode layer and the conductive connecting part;
- and
- a second electrode layer on the conductive resin layer and contacting the conductive connecting part,
- wherein the conductive connecting part of the conductive resin layer includes Ag3Sn.
A multilayer capacitor comprising:
- a body including dielectric layers and internal electrodes;
- and
- an external electrode disposed on one surface of the body, including:
- a first electrode layer disposed on one surface of the body and contacting the internal electrodes;
- a conductive resin layer on the first electrode layer and including a conductive connecting part including a low-melting-point metal, an intermetallic compound contacting the first electrode layer and the conductive connecting part, and a base resin covering the conductive connecting part and the intermetallic compound;
- and
- a second electrode layer on the conductive resin layer and contacting the conductive connecting part,
- wherein the conductive connecting part of the conductive resin layer includes Ag3Sn.
Dependencies are inferred from the claim text.