Electronic component and manufacturing method for electronic component

Patent metadata

Field	Value
Publication number	US-11328854-B2
Application number	US-201916255900-A
Country	US
Kind code	B2
Filing date	Jan 24, 2019
Priority date	Sep 30, 2016
Publication date	May 10, 2022
Grant date	May 10, 2022

Abstract

An electronic component includes a ceramic element body including glass, and outer electrodes provided on the ceramic element body. Each of the outer electrodes includes a base electrode layer on the ceramic element body and a buffer portion to buffer an impact. The base electrode layer includes a first region that is disposed on the ceramic element body and includes the buffer portion of equal to or more than about 15 vol % and equal to or less than about 50 vol %, and a second region that covers the first region and includes the buffer portion of equal to or more than about 1 vol % and equal to or less than about 10 vol %.

First claim

What is claimed is:

1. An electronic component comprising:
a ceramic element body including glass; and
a plurality of outer electrodes provided on the ceramic element body; wherein
each of the plurality of outer electrodes includes a base electrode layer that is provided on the ceramic element body and includes a buffer portion to buffer an impact; and
the base electrode layer includes a first region that is disposed on the ceramic element body and includes the buffer portion of equal to or more than about 15 vol % and equal to or less than about 50 vol % in a volume of the first region, and a second region that covers the first region and includes the buffer portion of equal to or more than about 1 vol % and equal to or less than about 10 vol % in a volume of the second region.

2. The electronic component according to claim 1 , wherein
a thickness of the first region is equal to or more than about 5 μm and equal to or less than about 40 μm; and
a thickness of the second region is equal to or more than about 1 μm and equal to or less than about 15 μm.

3. The electronic component according to claim 1 , wherein
the ceramic element body includes a first end surface and a second end surface that face each other in a length direction, a first side surface and a second side surface that face each other in a width direction orthogonal or substantially orthogonal to the length direction, and a first main surface and a second main surface that face each other in a height direction orthogonal or substantially orthogonal to the length direction and the width direction;
at least one or more of the outer electrodes are provided on each of the first side surface, the second side surface, the first end surface, and the second end surface, and
two or more of the plurality of outer electrodes are provided on at least one of the first side surface, the second side surface, the first end surface, and the second end surface.

4. The electronic component according to claim 1 , further comprising:
a hollow cavity portion provided in the ceramic element body; and
a pair of discharge electrodes that oppose each other in the hollow cavity portion.

5. The electronic component according to claim 1 , wherein the buffer portion is a void.

6. The electronic component according to claim 1 , wherein the ceramic element body includes a plurality of dielectric layers and a plurality of conductor patterns which are alternately laminated along a lamination direction.

7. The electronic component according to claim 6 , wherein the plurality of dielectric layers are made of a low-temperature sintered ceramic material including BaO—Al 2 O 3 —SiO 2 as a main component.

8. The electronic component according to claim 6 , wherein the conductor patterns are made of a Ni, Cu, Ag, Pd, an Ag—Pd alloy, or Au.

Assignees

• Murata Manufacturing Co

Inventors

• Nakamura Sumiyo
• Adachi Jun

Classifications

• H01F41/041 Primary

  Printed circuit coils (apparatus or processes for manufacturing printed circuits in general H05K3/00) · CPC title

• H01C7/12

  Overvoltage protection resistors; Arresters · CPC title

• H01F41/122

  Insulating between turns or between winding layers · CPC title

• H01C17/28

  adapted for applying terminals · CPC title

• H01F27/2804 Primary

  Printed windings · CPC title