Electronic component

Patent metadata

Field	Value
Publication number	US-9997295-B2
Application number	US-201514851114-A
Country	US
Kind code	B2
Filing date	Sep 11, 2015
Priority date	Sep 26, 2014
Publication date	Jun 12, 2018
Grant date	Jun 12, 2018

Abstract

An electronic component includes an electronic element including two outer electrodes on surfaces thereof and a board terminal including a board main body and two mounting electrodes. The board main body has electrical insulating properties and a first principal surface. The two mounting electrodes are disposed on the first principal surface and electrically coupled to the two outer electrodes, respectively. The electronic element is mounted on the first principal surface side. The two outer electrodes are partially disposed outside an outer edge of the board terminal when viewed from the first principal surface side. The height from an end of each of the two outer electrodes opposite the board terminal to an end of the board terminal opposite the electronic element is not greater than a larger dimension of the width of the electronic element and the width of the board terminal.

First claim

What is claimed is:

1. An electronic component comprising:
an electronic element including two outer electrodes on a surface thereof;
a board terminal including a board main body and two mounting electrodes, the board main body having electrical insulating properties and including a first principal surface, the two mounting electrodes being disposed on the first principal surface, being spaced apart from each other in a length direction, and electrically coupled to the two outer electrodes, respectively, the electronic element being mounted on the first principal surface; wherein
the two outer electrodes are partially disposed outside an outer edge of the board terminal when viewed from a height direction of the electronic element; and
a dimension in the height direction of the electronic element is not greater than a larger one of a dimension in a width direction of the electronic element and a dimension in the width direction of the board terminal, the height direction is perpendicular or substantially perpendicular to the first principal surface, the width direction is perpendicular or substantially perpendicular to the length direction and the height direction.

2. The electronic component according to claim 1 , wherein
the electronic element further includes a multilayer body in which a plurality of dielectric layers and a plurality of conductive layers are laminated;
the plurality of conductive layers includes first inner electrodes connecting one of the two outer electrodes and second inner electrodes connecting the other one of the two outer electrodes;
the multilayer body includes an effective portion in which the first inner electrodes and the second inner electrodes overlap one another with the dielectric layer disposed therebetween, and an ineffective portion surrounding the effective portion; and
a dimension in the height direction of the board main body is larger than a dimension in the height direction of a portion of the ineffective portion between the board terminal and the effective portion.

3. The electronic component according to claim 2 , wherein the two mounting electrodes fully overlap the effective portion when viewed from the height direction.

4. The electronic component according to claim 3 , wherein a shortest distance between the two mounting electrodes is not greater than the shortest distance between the two outer electrodes.

5. The electronic component according to claim 1 , wherein the dimension in the width direction of the board terminal is smaller than the dimension in the width direction of the electronic element.

6. The electronic component according to claim 1 , wherein a dimension in the length direction of the board terminal is smaller than a dimension in the length direction of the electronic element.

7. The electronic component according to claim 1 , wherein a dimension in the height direction of the electronic element is smaller than the dimension in the width direction of the electronic element.

8. The electronic component according to claim 1 , wherein each of a pair of side surfaces in each of the two mounting electrodes is at least partially covered with a conductive film joining the two outer electrodes and the two mounting electrodes.

9. The electronic component according to claim 1 , wherein the electronic element is a capacitor element.

10. The electronic component according to claim 9 , wherein the capacitor element includes two outer electrodes.

11. The electronic component according to claim 10 , wherein the effective portion includes conductive layers overlapping dielectric layers such that a first one of the conductive layers connected to one of the two outer electrodes and a second one of the conductive layers connected to the other of the two outer electrodes are laminated with one of the dielectric layers disposed therebetween.

12. The electronic component according to claim 10 , wherein a direction connecting the two outer electrodes with a shortest distance is parallel or substantially parallel to a length direction of the capacitor element.

13. The electronic component according to claim 10 , wherein at least one of the two outer electrodes includes a conductive paste underlying layer and a plating layer that covers the underlying layer.

14. The electronic component according to claim 13 , wherein the plating layer includes a plurality of plating layers made of different materials.

15. The electronic component according to claim 9 , wherein the capacitor element includes a plurality of dielectric layers and a plurality of conductive layers alternately laminated in a lamination direction.

16. The electronic component according to claim 15 , wherein the lamination direction is perpendicular or substantially perpendicular to a length direction of the capacitor element.

17. The electronic component according to claim 9 , wherein the capacitor element includes a multilayer body including an effective portion and an ineffective portion.

18. The electronic component according to claim 17 , wherein the effective portion defines and functions as a capacitor and the ineffective portion does not define or function as a capacitor.

19. The electronic component according to claim 1 , wherein the board terminal includes indentations on both ends in a length direction of the board main body.

20. The electronic component according to claim 1 , wherein the indentations have a shape that is one of elliptical, semi-elliptical and polygonal.

Assignees

• Murata Manufacturing Co

Inventors

• Fujita Yukihiro
• Yamada Tadateru
• Adachi Hirobumi

Classifications

• H01G2/06

  specially adapted for mounting on a printed-circuit support · CPC title

• H01G4/228 Primary

  Terminals · CPC title

• H01G4/30

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

• H01G4/005

  Electrodes · CPC title