IP Library › Granted Patent US 10,446,321
Granted Patent B2
US 10,446,321 · App. 15/840,372 · Granted Oct 15, 2019

Multilayer electronic component

Inventors: Yohei Noda (Tokyo, JP); Hirobumi Tanaka (Tokyo, JP)
Assignee: TDK CORPORATION
H01G4/30C03C3/085C03C3/087C03C3/089C03C3/091C03C8/24C03C10/00C03C10/0009C03C10/0036C03C14/006C04B35/468C04B35/4682H01C7/18H01G4/129H01G4/224C03C2214/20C04B2235/3206C04B2235/3225C04B2235/3262C04B2235/36C04B2235/6562C04B2235/6565C04B2235/6567C04B2235/6582H01G4/12H01G4/1227H01G4/232
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Quick Facts
Patent No.
US 10,446,321
App. No.
15/840,372
Granted
Oct 15, 2019
Kind
B2
Abstract

The present invention relates to a multilayer electronic component which includes an element body where a plurality of internal electrode layers and dielectric layers are alternately laminated. Insulating layers are disposed on a pair of side surfaces of the element body, facing each other. The insulating layers contain a glass composition and a ceramic composition.

Claims (17)

1. A multilayer electronic component comprising an element body where a plurality of internal electrode layers and dielectric layers are alternately laminated, wherein

the dielectric layers are comprised of dielectric material having a perovskite structure as a main composition,

an insulating layer is disposed on at least one side surface of the element body, wherein the at least one side surface is a surface parallel to a lamination direction of the plurality of internal electrode layers and dielectric layers, and a width from an end surface of an element body of the component to an external surface of the insulating layer in a direction perpendicular to the lamination direction is from 0.5 to 30 μm, and

the insulating layer comprises a glass composition and a ceramic composition wherein when the whole insulating layer is 100 wt %, a content of the ceramic composition is 10-70 wt %.

2. The multilayer electronic component according to claim 1 , wherein the ceramic composition comprises oxides containing at least one element from a group of Al, Zr, Ti, Ce, Fe, Mn, Cu, Co and Zn.

3. The multilayer electronic component according to claim 2 , wherein when the whole glass composition is 100 wt %, the glass composition comprises 35-75 wt % of SiO 2 .

4. The multilayer electronic component according to claim 3 , wherein when the whole glass composition is 100 wt %, the glass composition comprises 10-35 wt % of an alkali metal.

5. The multilayer electronic component according to claim 2 , wherein when the whole glass composition is 100 wt %, the glass composition comprises 10-35 wt % of an alkali metal.

6. The multilayer electronic component according to claim 1 , wherein when the whole glass composition is 100 wt %, the glass composition comprises 35-75 wt % of SiO 2 .

7. The multilayer electronic component according to claim 6 , wherein when the whole glass composition is 100 wt %, the glass composition comprises 10-35 wt % of an alkali metal.

8. The multilayer electronic component according to claim 1 , wherein when the whole glass composition is 100 wt %, the glass composition comprises 10-35 wt % of an alkali metal.

9. The multilayer electronic component according to claim 1 , wherein when the whole glass composition is 100 wt %, the glass composition comprises 10-50 wt % of BaO.

10. The multilayer electronic component according to claim 1 , wherein when the whole glass composition is 100 wt %, the glass composition comprises 1-10 wt % of Al 2 O 3 .

11. The multilayer electronic component according to claim 1 , wherein the dielectric material having a perovskite structure is represented by chemical formula ABO 3 , wherein A is at least one element chosen from a group consisting of Ca, Ba and Sr, and B is at least one element chosen from a group consisting of Ti and Zr.

12. The multilayer electronic component according to claim 1 , wherein when the whole insulating layer is 100 wt %, a content of the ceramic composition is 11-62 wt %.

13. The multilayer electronic component according to claim 1 , wherein when the whole insulating layer is 100 wt %, a content of the ceramic composition is 30-60 wt %.

14. The multilayer electronic component according to claim 1 , wherein when the whole insulating layer is 100 wt %, a content of the ceramic composition is 40-56 wt %.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 13, 2017
From: NODA, YOHEI; TANAKA, HIROBUMI
To: TDK CORPORATION
Reel/Frame 044386/0132 →
Priority Claims (1)
JP 2016-242418 · Dec 14, 2016 · national
Continuity (1)
Related Publication 20180166219A1 · Jun 14, 2018
Cited By (2)
US 12,322,549 US 12,400,790