Multilayer electronic component

Patent metadata

Field	Value
Publication number	US-2025166908-A1
Application number	US-202418918978-A
Country	US
Kind code	A1
Filing date	Oct 17, 2024
Priority date	Nov 21, 2023
Publication date	May 22, 2025
Grant date	—

Abstract

A multilayer electronic component includes a body including a dielectric layer and an internal electrode; and an external electrode disposed on the body, wherein the dielectric layer includes acceptor elements including vanadium (V), donor elements including rare earth elements, and titanium (Ti), and wherein, when the number of moles of the acceptor elements per 100 moles of titanium (Ti) is defined as Am, the number of moles of the donor elements per 100 moles of titanium (Ti) is defined as Dm, and the number of moles of vanadium (V) based on per of titanium (Ti) is defined as Vm, 1.2≤Dm/Am≤1.4 and 0.2≤Vm/Dm is satisfied.

First claim

What is claimed is:

1 . A multilayer electronic component, comprising:
a body including a dielectric layer and an internal electrode; and an external electrode disposed on the body, wherein the dielectric layer comprises titanium (Ti), acceptor elements including vanadium (V), and donor elements including rare earth elements, and wherein, when number of moles of the acceptor elements per 100 moles of titanium (Ti) is defined as Am, number of moles of the donor elements per 100 moles of titanium (Ti) is defined as Dm, and number of moles of vanadium (V) per 100 moles of titanium (Ti) is defined as Vm, 1.2≤Dm/Am≤1.4 and 0.2≤Vm/Dm is satisfied.

2 . The multilayer electronic component of claim 1 , wherein Vm satisfies 0 mole<Vm≤1.0 moles.

3 . The multilayer electronic component of claim 1 , wherein the rare earth elements include at least one of dysprosium (Dy), terbium (Tb), yttrium (Y), holmium (Ho), erbium (Er), gadolinium (Gd), cerium (Ce), neodymium (Nd), samarium (Sm) and thulium (Tm).

4 . The multilayer electronic component of claim 1 , wherein the rare earth elements are at least one of dysprosium (Dy) and terbium (Tb).

5 . The multilayer electronic component of claim 1 , wherein the acceptor elements include at least one of magnesium (Mg), aluminum (Al), manganese (Mn), chromium (Cr), iron (Fe), nickel (Ni), cobalt (Co), copper (Cu) and zinc (Zn).

6 . The multilayer electronic component of claim 1 ,
wherein the dielectric layer includes dielectric grains having a core-shell structure, and wherein an area fraction of the core relative to an area of dielectric grains having a core-shell structure is 60% or higher.

7 . The multilayer electronic component of claim 6 , wherein dielectric grains having a core-shell structure include rare earth elements, and an atomic percentage of the rare earth elements of the shell is greater than 0 at % and 0.5 at % or lower.

8 . The multilayer electronic component of claim 1 , wherein the dielectric layer includes a barium titanate (BaTiO 3 ) dielectric material.

9 . The multilayer electronic component of claim 1 , wherein the body includes a plurality of dielectric layers, and an average thickness of at least one of the plurality of dielectric layers is 1.0 μm or lower.

10 . The multilayer electronic component of claim 1 , wherein the body includes a plurality of internal electrodes, and an average thickness of at least one of the plurality of internal electrodes is 0.6 μm or lower.

11 . The multilayer electronic component of claim 1 , wherein an average length of the multilayer electronic component is 1.0 mm or lower, and an average width thereof is 0.5 mm or lower.

12 . A dielectric material comprising:
titanium (ti); acceptor elements including vanadium (V); and donor elements including rare earth elements, wherein 1.2≤Dm/Am≤1.4 and 0.2≤Vm/Dm, wherein Am is number of moles of the acceptor elements for every 100 moles of Ti, Dm is number of moles of donor elements for every 100 moles of Ti, and Vm is number of moles of V for every 100 moles of Ti.

13 . The dielectric material of claim 12 , wherein the dielectric material comprises dielectric grains having a core-shell structure.

14 . The dielectric material of claim 13 , wherein an area fraction of a core of the core-shell structure is at least 60%.

15 . The dielectric material of claim 13 , wherein atomic percentage of the rare earth elements in a shell of the core-shell structure is non-zero and less than or equal to 0.5%.

16 . An electronic component comprising a layer of the dielectric material of claim 12 .

Assignees

• Samsung Electro Mech

Inventors

• Park Jeong Yun
• Park Il Jeong
• Jin Hye Jin
• Kim Hyoung Uk
• Kwon Hyung Soon

Classifications

• H01G4/005

  Electrodes · CPC title

• H01G4/30 Primary

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

• H01G4/1227 Primary

  based on alkaline earth titanates · CPC title

• Y02E60/13

  Energy storage using capacitors · CPC title

• C04B35/468

  based on barium titanates · CPC title