# US 12,009,151 B2 · Capacitor component

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 12,009,151 B2
- Document ID: US12009151B2
- Status: Granted
- Kind: B2
- Application number: 17/686,951
- Filed: 2022-03-04
- Published: 2023-05-11
- Granted: 2024-06-11
- Earliest claimed: 2021-11-11
- Assignees: Samsung Electro-Mechanics Co., Ltd.
- Applicants: Samsung Electro-Mechanics Co., Ltd.
- Inventors: Min Soo Kim; Jung Hyun An; Yun Kim; Seung Yong Lee; Dong Chan Seo; Yu Ra Shin; Jin Bok Shin; Choong Seop Jeon; Yun Jeong Cha
- Web page: https://patentgrep.com/patent/US12009151B2

## CPC

- H01G 4/1227: {based on alkaline earth titanates}
- C04B 35/4682: {based on BaTiO3 perovskite phase}
- C04B 35/62815: {Rare earth metal oxides}
- C04B 35/64: Burning or sintering processes (C04B33/32 takes precedence {; powder metallurgy B22F})
- C04B 37/003: {by means of an interlayer consisting of a combination of materials selected from glass, or ceramic material with metals, metal oxides or metal salts}
- H01G 4/012: Form of non-self-supporting electrodes
- H01G 4/1209: {characterised by the ceramic dielectric material (H01G4/1272, H01G4/1281 take precedence)}
- H01G 4/2325: {characterised by the material of the terminals}
- H01G 4/30: Stacked capacitors (H01G4/33 takes precedence)
- C04B 35/6264: {Mixing media, e.g. organic solvents}
- C04B 2235/3224: Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
- C04B 2235/3236: Alkaline earth titanates
- C04B 2235/449: Organic acids, e.g. EDTA, citrate, acetate, oxalate
- C04B 2237/346: Titania or titanates
- H01G: CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE (selection of specified materials as dielectric H01B3/00; capacitors having potential barriers H10D1/62, H10K10/10)
- C04B: LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE {(roofing granules E04D7/005)}; CERAMICS (devitrified glass-ceramics C03C10/00); REFRACTORIES; TREATMENT OF NATURAL STONE

## Abstract

A capacitor component includes a body including a dielectric layer and an internal electrode layer, and an external electrode disposed on the body and connected to the internal electrode layer. The dielectric layer includes dielectric grains, at least a portion of the dielectric grains has a core-shell structure, and a shell of the core-shell structure contains a rare earth element having an average concentration of more than 0.5 at %.

## Claims

### Claim 1

A method for producing a capacitor component comprising:
mixing BaTiO3 and a metal acetate containing dysprosium (Dy) in a solvent to form a mixture, wherein the solvent is ethanol, and the metal acetate is not dissolved in water;
concentrating the mixture to prepare a base material powder;
preparing a plurality of dielectric green sheets including the base material powder;
printing a conductive paste layer on each of the dielectric green sheets;
laminating a plurality of the printed dielectric green sheets and conductive paste layers to form a laminate; and
sintering the laminate to form a body of the capacitor component such that the plurality of dielectric sheets form a plurality of dielectric layers and each of the conductive paste layers form an internal electrode layer.

### Claim 2 (depends on 1)

The method of claim 1, wherein at least one of the plurality of dielectric layers includes dielectric grains of which at least a portion is surrounded by a wall including dysprosium (Dy) at an average concentration greater than 0.5 at %.

### Claim 3 (depends on 2)

The method of claim 2, wherein the average concentration of dysprosium (Dy) in the wall is greater than 0.7 at %.

### Claim 4 (depends on 2)

The method of claim 2, wherein the average concentration of dysprosium (Dy) in the wall is at least 0.85 at %.

### Claim 5 (depends on 1)

The method of claim 1, wherein the mixture excludes metal oxide containing dysprosium (Dy).

### Claim 6 (depends on 1)

The method of claim 1, wherein the mixture excludes nitric acid.

### Claim 7 (depends on 1)

The method of claim 1, wherein the mixing of BaTiO3 and the metal acetate includes mixing a dispersing agent with BaTiO3 and the metal acetate.

### Claim 8 (depends on 7)

The method of claim 7, wherein the mixture consists of BaTiO3, the metal acetate, the dispersing agent, and ethanol.

### Claim 9 (depends on 8)

The method of claim 8, wherein at least one of the plurality of dielectric layers includes dielectric grains of which at least a portion is surrounded by a wall including dysprosium (Dy) at an average concentration of at least 0.85 at %.