IP Library Granted Patent US 9,870,866
Granted Patent B2
US 9,870,866 · App. 15/265,129 · Granted Jan 16, 2018

Multilayer electronic component

Inventors: Yohei Noda (Tokyo, JP); Hirobumi Tanaka (Tokyo, JP); Hiroshi Shindo (Tokyo, JP); Yui Sugiura (Tokyo, JP); Tomomichi Gunji (Tokyo, JP); Keisuke Okai (Tokyo, JP)
Assignee: TDK CORPORATION
H01G4/30H01G4/224H01G4/232H01G4/12
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Quick Facts
Patent No.
US 9,870,866
App. No.
15/265,129
Granted
Jan 16, 2018
Kind
B2
Abstract

A multilayer electronic component includes an element body having an internal electrode layer and a dielectric layer. These are substantially parallel to a plane including a first axis and a second axis and are alternately laminated along a third axis direction. Side surfaces facing each other in the first axis direction are respectively equipped with an insulating layer. End surfaces facing each other in the second axis direction are respectively equipped with an external electrode. The insulating layer integrally has an insulating layer extension portion covering part of the end surfaces facing each other in the second axis direction. W 1 /W 0 is 1/30 to less than ⅜, where W 0 denotes a width along the first axis, and W 1 denotes a width along the first axis of the insulating layer extension portion. The external electrode covers at least part of the insulating layer extension portion.

Claims (46)

1. A multilayer electronic component comprising an element body having an internal electrode layer and a dielectric layer, both of which are substantially parallel to a plane including a first axis and a second axis and are alternately laminated along a third axis direction, wherein

a pair of side surfaces facing each other in the first axis direction of the element body is respectively equipped with an insulating layer,

a pair of end surfaces facing each other in the second axis direction of the element body is respectively equipped with an external electrode electrically connected to the internal electrode layer,

the insulating layer integrally has an insulating layer extension portion covering part of the end surfaces facing each other in the second axis direction of the element body,

W 1 /W 0 is 1/30 to less than ⅜, where

W 0 denotes a width along the first axis of the element body and

W 1 denotes a width along the first axis of the insulating layer extension portion formed on the end surfaces in the second axis direction of the element body, and

the external electrode covers at least part of the insulating layer extension portion formed on the end surfaces in the second axis direction of the element body.

2. The multilayer electronic component according to claim 1 , wherein

an angle θ 1 made by a virtual line along the end surface of the element body and a tangential line of a curved surface of a peripheral edge portion of the insulating layer extension portion formed on the end surfaces in the second axis direction of the element body is 45 degrees or less.

3. The multilayer electronic component according to claim 1 , wherein

an elastic modulus of the insulating layer is 30 GPa to 100 GPa.

4. The multilayer electronic component according to claim 2 , wherein

an elastic modulus of the insulating layer is 30 GPa to 100 GPa.

5. The multilayer electronic component according to claim 1 , wherein

0.5≦Mf/Mt≦2.0 is satisfied, where

Mf denotes a maximum thickness in the second axis direction of the insulating layer from the end surface of the element body and

Mt denotes a maximum thickness in the first axis direction of the insulating layer from the side surface of the element body.

6. The multilayer electronic component according to claim 2 , wherein

0.5≦Mf/Mt≦2.0 is satisfied, where

Mf denotes a maximum thickness in the second axis direction of the insulating layer from the end surface of the element body and

Mt denotes a maximum thickness in the first axis direction of the insulating layer from the side surface of the element body.

7. The multilayer electronic component according to claim 3 , wherein

0.5≦Mf/Mt≦2.0 is satisfied, where

Mf denotes a maximum thickness in the second axis direction of the insulating layer from the end surface of the element body and

Mt denotes a maximum thickness in the first axis direction of the insulating layer from the side surface of the element body.

8. The multilayer electronic component according to claim 4 , wherein

0.5≦Mf/Mt≦2.0 is satisfied, where

Mf denotes a maximum thickness in the second axis direction of the insulating layer from the end surface of the element body and

Mt denotes a maximum thickness in the first axis direction of the insulating layer from the side surface of the element body.

9. The multilayer electronic component according to claim 1 , wherein

the insulating layer is constituted by a glass component.

10. The multilayer electronic component according to claim 2 , wherein

the insulating layer is constituted by a glass component.

11. The multilayer electronic component according to claim 3 , wherein

the insulating layer is constituted by a glass component.

12. The multilayer electronic component according to claim 4 , wherein

the insulating layer is constituted by a glass component.

13. The multilayer electronic component according to claim 5 , wherein

the insulating layer is constituted by a glass component.

14. The multilayer electronic component according to claim 6 , wherein

the insulating layer is constituted by a glass component.

15. The multilayer electronic component according to claim 7 , wherein

the insulating layer is constituted by a glass component.

16. The multilayer electronic component according to claim 8 , wherein

the insulating layer is constituted by a glass component.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 14, 2016
From: NODA, YOHEI; TANAKA, HIROBUMI; SHINDO, HIROSHI; SUGIURA, YUI; GUNJI, TOMOMICHI; OKAI, KEISUKE
To: TDK CORPORATION
Reel/Frame 039739/0982 →
Priority Claims (1)
JP 2015-182071 · Sep 15, 2015 · national
Continuity (1)
Related Publication 20170076870A1 · Mar 16, 2017