IP Library › Granted Patent US 10,937,596
Granted Patent B2
US 10,937,596 · App. 16/750,050 · Granted Mar 2, 2021

Electronic component

Inventors: Shinya Onodera (Tokyo, JP); Takehisa Tamura (Tokyo, JP); Ken Morita (Tokyo, JP)
Assignee: TDK CORPORATION
H01G4/248H01G4/2325H01G4/30H01G4/1227
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 10,937,596
App. No.
16/750,050
Granted
Mar 2, 2021
Kind
B2
Abstract

An electronic component includes an element body including a plurality of side surfaces adjacent to each other, and an external electrode disposed on the plurality of side surfaces. The external electrode includes a conductive resin layer in which a plurality of gaps exists and a plating layer disposed on the conductive resin layer. A clearance communicating with the plurality of gaps exists between an end edge of the plating layer and the element body. The conductive resin layer includes a first portion located on one side surface of the plurality of side surfaces and a second portion located on another side surface of the plurality of side surfaces. An existence ratio of the gaps in the first portion is greater than an existence ratio of the gaps in the second portion.

Claims (50)

1. An electronic component comprising:

an element body including a plurality of side surfaces adjacent to each other; and

an external electrode disposed on the plurality of side surfaces, wherein

the external electrode includes a conductive resin layer in which a plurality of gaps exists and a plating layer disposed on the conductive resin layer,

a clearance communicating with the plurality of gaps exists between an end edge of the plating layer and the element body,

the conductive resin layer includes a first portion located on one side surface of the plurality of side surfaces and a second portion located on another side surface of the plurality of side surfaces, and

an existence ratio of the gaps in the first portion is greater than an existence ratio of the gaps in the second portion.

2. The electronic component according to claim 1 , wherein

a maximum thickness of the first portion is larger than a maximum thickness of the second portion.

3. The electronic component according to claim 1 , wherein

a total area of the gaps in the first portion is within a range of 5 to 35% of an area of the first portion in a cross-section along a thickness direction of the first portion.

4. The electronic component according to claim 1 , wherein

the one side surface is arranged to constitute a mounting surface.

5. The electronic component according to claim 1 , wherein

the other side surface is arranged to constitute a mounting surface.

6. The electronic component according to claim 1 , wherein

the element body includes an end surface adjacent to the plurality of side surfaces,

the conductive resin layer is formed to continuously cover a part of each of the plurality of side surfaces and a part of the end surface, and

the plating layer is formed to cover the entire end surface.

7. The electronic component according to claim 1 , wherein

the element body includes an end surface adjacent to the plurality of side surfaces,

the one side surface is arranged to constitute a mounting surface,

the conductive resin layer is formed to continuously cover a part of each of the plurality of side surfaces and a part of the end surface,

the plating layer is formed to cover the entire end surface, and

an area of the first portion is larger than an area of the second portion.

8. The electronic component according to claim 1 , wherein

a maximum length of each of the plurality of gaps is within a range of 1 to 20 μm in a cross-section along a thickness direction of the conductive resin layer.

9. An electronic component comprising:

an element body; and

an external electrode disposed on the element body, wherein

the external electrode includes a conductive resin layer in which a plurality of gaps exists and a plating layer disposed on the conductive resin layer, and

a clearance communicating with the plurality of gaps exists between an end edge of the plating layer and the element body.

10. An electronic component comprising:

an element body including a side surface and an end surface adjacent to each other; and

an external electrode disposed on the side surface and the end surface, wherein

the external electrode includes a conductive resin layer in which a plurality of gaps exists and a plating layer disposed on the conductive resin layer,

a clearance communicating with the plurality of gaps exists between an end edge of the plating layer and the element body,

the conductive resin layer includes a first portion located on the side surface and a second portion located on the end surface, and

an existence ratio of the gaps in the first portion is greater than an existence ratio of the gaps in the second portion.

11. The electronic component according to claim 10 , wherein

a maximum thickness of the first portion is larger than a maximum thickness of the second portion.

12. The electronic component according to claim 10 , wherein

a total area of the gaps in the first portion is within a range of 5 to 35% of an area of the first portion in a cross-section along a thickness direction of the first portion.

13. The electronic component according to claim 10 , wherein

the side surface is arranged to constitute a mounting surface.

14. The electronic component according to claim 10 , wherein

the conductive resin layer is formed to continuously cover a part of the side surface and a part of the end surface, and

the plating layer is formed to cover the entire end surface.

15. The electronic component according to claim 10 , wherein

a maximum length of each of the plurality of gaps is within a range of 1 to 20 μm in a cross-section along a thickness direction of the conductive resin layer.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 23, 2020
From: ONODERA, SHINYA; TAMURA, TAKEHISA; MORITA, KEN
To: TDK CORPORATION
Reel/Frame 051592/0669 →
Priority Claims (2)
JP JP2019-019533 · Feb 6, 2019 · national
JP JP2019-019536 · Feb 6, 2019 · national
Continuity (1)
Related Publication 20200251283A1 · Aug 6, 2020