IP Library Granted Patent US 8,730,646
Granted Patent B2
US 8,730,646 · App. 12/466,435 · Granted May 20, 2014

Laminated electronic component and method for manufacturing the same

Inventors: Kenichi Kawasaki (Echizen, JP); Shunsuke Takeuchi (Echizen, JP); Akihiro Motoki (Fukui, JP); Makoto Ogawa (Fukui, JP); Toshiyuki Iwanaga (Sabae, JP)
Assignee: Murata Manufacturing Co., Ltd.
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Quick Facts
Patent No.
US 8,730,646
App. No.
12/466,435
Granted
May 20, 2014
Kind
B2
Abstract

A laminated electronic component includes outer terminal electrodes including lower plating films including metal particles having an average size of 0.5 μm or less, the lower plating films being formed by directly plating an outer surface of an electronic component body such that the lower plating films are electrically connected to exposed portions of inner conductors. The outer terminal electrodes may further include upper plating films formed on the lower plating films, the upper plating films being defined by one or more layers. Metal particles defining the upper plating films may have an average size of 0.5 μm or less. The metal particles defining the lower plating films may be Cu particles.

Claims (35)

1. A laminated electronic component comprising:

an electronic component body including a plurality of laminated functional layers;

an inner conductor provided in the electronic component body and including a portion exposed at an outer surface of the electronic component body; and

an outer terminal electrode arranged on the outer surface of the electronic component body such that the outer terminal electrode is electrically connected to the inner conductor and

the outer terminal electrode covers the exposed portion of the inner conductor; wherein the outer terminal electrode includes a lower plating film that is directly plated on the outer surface of the electronic component body so as to cover the exposed portion of the inner conductor;

the lower plating film is directly connected to the exposed portion of the inner conductor;

the lower plating film includes first metal particles having an average size of about 0.5 μm or less;

the lower plating film is made of a material that is not fired or sintered; and

the lower plating film has a thickness of about 1 μm to about 10 μm.

2. The laminated electronic component according to claim 1 , wherein the outer terminal electrode further includes an upper plating film disposed on the lower plating film, and the upper plating film includes at least one layer.

3. The laminated electronic component according to claim 2 , wherein the upper plating film includes second metal particles having an average size of about 0.5 μm or less.

4. The laminated electronic component according to claim 2 , wherein the upper plating film includes second metal particles having an average size substantially equal to or greater than the average size of the first metal particles of the lower plating film.

5. The laminated electronic component according to claim 1 , wherein the first metal particles of the lower plating film are Cu particles.

6. A laminated electronic component comprising:

an electronic component body including a plurality of laminated functional layers;

an inner conductor provided in the electronic component body and including a portion exposed at an outer surface of the electronic component body; and

an outer terminal electrode arranged on the outer surface of the electronic component body such that the outer terminal electrode is electrically connected to the inner conductor and

the outer terminal electrode covers the exposed portion of the inner conductor; wherein the outer terminal electrode includes a lower plating film that is directly plated on the outer surface of the electronic component body so as to cover the exposed portion of the inner conductor;

the lower plating film is directly connected to the exposed portion of the inner conductor;

the lower plating film includes first metal particles having an average size of about 0.5 μm or less;

the lower plating film does not include any glass; and

the lower plating film has a thickness of about 1 μm to about 10 μm.

7. The laminated electronic component according to claim 6 , wherein the outer terminal electrode further includes an upper plating film disposed on the lower plating film, and the upper plating film includes at least one layer.

8. The laminated electronic component according to claim 7 , wherein the upper plating film includes second metal particles having an average size of about 0.5 μm or less.

9. The laminated electronic component according to claim 7 , wherein the upper plating film includes second metal particles having an average size substantially equal to or greater than the average size of the first metal particles of the lower plating film.

10. The laminated electronic component according to claim 6 , wherein the first metal particles of the lower plating film are Cu particles.

11. A laminated electronic component comprising:

an electronic component body including a plurality of laminated functional layers;

an inner conductor provided in the electronic component body and including a portion exposed at an outer surface of the electronic component body; and

an outer terminal electrode arranged on the outer surface of the electronic component body such that the outer terminal electrode is electrically connected to the inner conductor and the outer terminal electrode covers the exposed portion of the inner conductor; wherein

the outer terminal electrode includes a lower plating film that is directly plated on the outer surface of the electronic component body so as to cover the exposed portion of the inner conductor;

the lower plating film is directly connected to the exposed portion of the inner conductor;

the lower plating film includes metal particles having an average size of about 0.5 μm or less; and

the lower plating film consists of metal; and

the lower plating film has a thickness of about 1 μm to about 10 μm.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 15, 2009
From: KAWASAKI, KENICHI; TAKEUCHI, SHUNSUKE; MOTOKI, AKIHIRO; OGAWA, MAKOTO; IWANAGA, TOSHIYUKI
To: MURATA MANUFACTURING CO., LTD.
Reel/Frame 022688/0946 →
Priority Claims (1)
JP 2008-132871 · May 21, 2008 · national
Continuity (1)
Related Publication 20090291317A1 · Nov 26, 2009