IP Library › Granted Patent US 12,249,467
Granted Patent B2
US 12,249,467 · App. 18/733,322 · Granted Mar 11, 2025

Electronic component

Inventors: Shinya Onodera (Tokyo, JP); Akitoshi Yoshii (Tokyo, JP); Kyohei Takata (Tokyo, JP)
Assignee: TDK CORPORATION
H01G4/30H01G4/008H01G4/012H01G4/232
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Quick Facts
Patent No.
US 12,249,467
App. No.
18/733,322
Granted
Mar 11, 2025
Kind
B2
Abstract

A plurality of external electrodes are disposed on both ends of an element body. Each of the plurality of external electrodes includes a pair of electrode portions disposed on a pair of side surfaces and including a conductive resin layer. For each of the two conductive resin layers located on the same side surface, one conductive resin layer includes an edge opposing another conductive resin layer. The conductive resin layer includes a first region and a second region. The first region included a plurality of metal particles of a first content and a resin. The second region includes a plurality of metal particles of a second content smaller than the first content and a resin. The second region is located closer to the edge of the conductive resin layer than the first region, and includes the edge of the conductive resin layer.

Claims (33)

1. An electronic component, comprising:

an element body of a rectangular parallelepiped shape including a pair of end surfaces opposing each other in a first direction, a pair of first side surfaces opposing each other in a second direction, and a pair of second side surfaces opposing each other in a third direction;

a plurality of external electrodes disposed on both ends of the element body in the first direction; and

a plurality of internal electrodes disposed in the element body to be distributed in the second direction and electrically connected to corresponding external electrodes of the plurality of external electrodes,

wherein each of the plurality of external electrodes includes a pair of first electrode portions disposed on the pair of second side surfaces and including a conductive resin layer,

for each of the two conductive resin layers located on the same second side surface, one conductive resin layer includes an edge opposing another conductive resin layer,

the conductive resin layer includes:

a first region including a plurality of metal particles of a first content and a resin; and

a second region including a plurality of metal particles of a second content smaller than the first content and a resin, and

the second region is located closer to the edge of the conductive resin layer than the first region, and includes the edge of the conductive resin layer.

2. The electronic component according to claim 1 ,

wherein each of the plurality of external electrodes includes a pair of second electrode portions disposed on the pair of first side surfaces and including a conductive resin layer,

for each of the two conductive resin layers located on the same first side surface, one conductive resin layer includes an edge opposing another conductive resin layer,

the conductive resin layer included in the second electrode portion includes:

a third region including a plurality of metal particles of a third content and a resin; and

a fourth region including a plurality of metal particles of a fourth content smaller than the third content and a resin, and

the fourth region is located closer to the edge of the conductive resin layer than the third region, and includes the edge of the conductive resin layer.

3. The electronic component according to claim 1 ,

wherein the metal particles include silver particles.

4. The electronic component according to claim 1 ,

wherein each of the plurality of external electrodes includes a pair of second electrode portions disposed on the pair of first side surfaces and including a conductive resin layer,

for each of the two conductive resin layers located on the same first side surface, one conductive resin layer includes an edge opposing another conductive resin layer,

an outermost internal electrode located outermost in the second direction, of the plurality of internal electrodes, is adjacent in the second direction to the second electrode portion to which the outermost internal electrode is electrically connected, and

assuming that a plane including the end surface to which the outermost internal electrode is exposed is a reference plane, a first length of the outermost internal electrode in the first direction from the reference plane is larger than a second length in the first direction from the reference plane to the edge of the conductive resin layer electrically connected to the outermost internal electrode and included in the second electrode portion, and smaller than a third length from the reference plane to the edge of the conductive resin layer not electrically connected to the outermost internal electrode and included in the second electrode portion.

5. The electronic component according to claim 4 , further comprising:

a dummy conductor located in the same layer as the outermost internal electrode and separated from the outermost internal electrode,

wherein the dummy conductor is electrically connected to the external electrode to which the outermost internal electrode located in the same layer as the dummy conductor is not electrically connected.

6. The electronic component according to claim 1 , further comprising:

a pair of dummy conductors each adjacent to a corresponding first side surface of the pair of first side surfaces in the second direction,

wherein each of the plurality of external electrodes includes a pair of second electrode portions disposed on the pair of first side surfaces and including a conductive resin layer, and

each of the pair of dummy conductors opposes the conductive resin layer not electrically connected to the internal electrode adjacent to the dummy conductor in the second direction and included in the second electrode portion, in the second direction.

7. The electronic component according to claim 1 ,

wherein each of the plurality of external electrodes further includes an electrode portion disposed on the end surface and including a conductive resin layer.

Priority Claims (1)
JP 2020-219273 · Dec 28, 2020 · national
Continuity (2)
Division 17559552 · Dec 22, 2021
Related Publication 20240321521A1 · Sep 26, 2024
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