# US 10,872,710 B2 · Dielectric composites, and multi-layered capacitors and electronic devices comprising thereof

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- Number: US 10,872,710 B2
- Document ID: US10872710B2
- Status: Granted
- Kind: B2
- Application number: 16/426,044
- Filed: 2019-05-30
- Published: 2019-12-05
- Granted: 2020-12-22
- Earliest claimed: 2018-05-30
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Doh Won Jung; Chan Kwak; Hyungjun Kim; Jong Wook Roh; Daejin Yang; Youngjin Cho
- Web page: https://patentgrep.com/patent/US10872710B2

## CPC

- H01B 3/002: {Inhomogeneous material in general}
- H01B 3/12: ceramics
- H01G 4/1236: {based on zirconium oxides or zirconates (H01G4/1263 takes precedence)}
- H01G 4/1254: {based on niobium or tungsteen, tantalum oxides or niobates, tantalates}
- H01G 4/1263: {containing also zirconium oxides or zirconates}
- H01G 4/30: Stacked capacitors (H01G4/33 takes precedence)
- H01B: CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F1/00; waveguides H01P {; printed circuits H05K})
- 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)

## Abstract

A dielectric composite includes: at least one first dielectric material represented by Chemical Formula 1, and at least one second dielectric material represented by Chemical Formula 2, wherein the first dielectric material has at least one first crystal structure and the second dielectric material has a second crystal structure that is different from the first crystal structure, and the first dielectric material and the second dielectric material are agglomerated with each other, A111-xA12xB12O6 Chemical Formula 1 A212(1-y)A222yB22O7. Chemical Formula 2

## Claims

### Claim 1

A dielectric composite, comprising:
at least one first dielectric material represented by Chemical Formula 1, and
at least one second dielectric material represented by Chemical Formula 2,
wherein the first dielectric material has at least one first crystal structure and the second dielectric material has a second crystal structure that is different from the first crystal structure, and
the first dielectric material and the second dielectric material are agglomerated with each other
A111-xA12xB12O6 Chemical Formula 1
A212(1-y)A222yB22O7 Chemical Formula 2
wherein, in Chemical Formula 1 and Chemical Formula 2,
A11, A12, A21, and A22 are each independently at least one metal element having an oxidation number of 2+,
A12 has an ionic radius which is larger than an ionic radius of A11,
A22 has an ionic radius which is larger than an ionic radius of A21,
B1 and B2 are each independently at least one of Nb, Ta, V, Zr, W, Mo, and Cr,
0≤x≤0.5, and 0≤y≤0.5.

### Claim 2 (depends on 1)

The dielectric composite of claim 1, wherein the first crystal structure is at least one of a monoclinic crystal structure and a tetragonal crystal structure.

### Claim 3 (depends on 1)

The dielectric composite of claim 1, wherein the second crystal structure is at least one of an orthorhombic crystal structure and a tetragonal crystal structure.

### Claim 4 (depends on 1)

The dielectric composite of claim 1, wherein the dielectric composite comprises at least two different crystal structures.

### Claim 5 (depends on 1)

The dielectric composite of claim 1, wherein the dielectric composite comprises at least three crystal structures.

### Claim 6 (depends on 1)

The dielectric composite of claim 1, wherein a mole ratio of the first dielectric material relative to the second dielectric material is about 0.5 to about 2, based on total moles of the dielectric composite.

### Claim 7 (depends on 1)

The dielectric composite of claim 1, wherein the A11, A12, A21, and A22 are each independently at least one metal element having an oxidation number of 2+ comprising Mg, Ca, Sr, Ba, or Ra.

### Claim 8 (depends on 1)

The dielectric composite of claim 1, wherein the dielectric composite has relative permittivity of about 20 to about 1500 at a thickness of about 2 nanometers to about 500 nanometers.

### Claim 9 (depends on 1)

The dielectric composite of claim 1, wherein the first dielectric material comprises a dielectric material A and a dielectric material B, wherein a crystal structure of the dielectric material A and a crystal structure dielectric material B are different.

### Claim 10 (depends on 1)

The dielectric composite of claim 1, wherein Chemical Formula 1 satisfies 0.2<x<0.5.

### Claim 11 (depends on 9)

The dielectric composite of claim 9, wherein the dielectric material B is included in an amount of about 0 mole percent to about 30 mole percent, based on total moles of the dielectric composite.

### Claim 12 (depends on 1)

A multi-layered capacitor comprising:
alternate layers of an internal electrode and a dielectric layer,
wherein the dielectric layer comprises the dielectric composite of claim 1.

### Claim 13 (depends on 12)

The multi-layered capacitor of claim 12, wherein the internal electrode and the dielectric layer alternate at least twice.

### Claim 14 (depends on 12)

The multi-layered capacitor of claim 12, wherein a thickness of the dielectric layer is about 2 nanometers to about 500 nanometers.

### Claim 15 (depends on 1)

An electronic device comprising the dielectric composite of claim 1.

### Claim 16 (depends on 15)

The electronic device of claim 15, wherein the electronic device is a varistor, a thermistor, or a capacitor.