Electronic component and method of producing same

Patent metadata

Field	Value
Publication number	US-9424980-B2
Application number	US-201414448956-A
Country	US
Kind code	B2
Filing date	Jul 31, 2014
Priority date	Jul 11, 2011
Publication date	Aug 23, 2016
Grant date	Aug 23, 2016

Abstract

A laminate in which plural insulator layers are stacked includes an external electrode that is exposed to the exterior of the laminate and includes a plurality of conductive layers stacked in a staking direction and passing through some of the plural insulator layers in the stacking direction. At least one side of the external electrode facing in the stacking direction is overlaid with rest of the plural insulator layers. At least one side surface of the external electrode facing in the stacking direction is uneven with another portion of the side surface.

First claim

What is claimed is:

1. An electronic component comprising:
a laminate in which plural insulator layers are stacked; and
an external electrode exposed to an exterior of the laminate and comprising plural conductive layers stacked in a stacking direction, each of said conductive layers passing through a first part of the plural insulator layers in the stacking direction,
wherein sides of the external electrode respectively facing in the stacking direction and facing in a direction 180° opposite the stacking direction are overlaid with a second parts of the plural insulator layers such that the entire external electrode is covered by the second parts of the plural insulator layers in the stacking direction and in the direction 180° opposite the stacking direction, and
wherein at least one side surface of the external electrode either facing the stacking direction or facing the direction 180° opposite the stacking direction includes a portion that is uneven with another portion of the side surface.

2. The electronic component according to claim 1 , wherein the laminate includes a mounting surface, the mounting surface being a series of outer edges of the plurality of insulator layers, and
the external electrode is exposed to the exterior of the laminate in the mounting surface.

3. The electronic component according to claim 2 , wherein the external electrode is exposed to the exterior of the laminate so as to extend over a border between the mounting surface and an end surface, the end surface being adjacent to the mounting surface and being a series of outer edges of the plurality of insulator layers.

4. The electronic component according to claim 3 , wherein the external electrode has a width in the stacking direction, the width not being a maximum in a corner between the mounting surface and the end surface.

5. The electronic component according to claim 1 , wherein the uneven side surface is located at at least one end thereof in the stacking direction, the uneven side surface being formed of the stacked conductive layers having different shapes in plan view from the stacking direction.

Assignees

• Murata Manufacturing Co

Inventors

• Seko Atsushi

Classifications

• H01F2027/2809

  on stacked layers · CPC title

• H01F27/2804 Primary

  Printed windings · CPC title

• H01F17/0013 Primary

  with stacked layers · CPC title

• H01F41/043

  by thick film techniques · CPC title

• H01F27/292

  Surface mounted devices · CPC title