Patent
US 10,699,850MULTILAYER CAPACITOR INCLUDING GRAPHENE PLATELETS
Seung Yong LEE
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 10,699,850Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a schematic perspective view of a multilayer capacitor according to an exemplary embodiment in the present disclosure;
FIG. 2 is a cross-sectional view taken along line I-I' in
FIG. 3 is a magnified cross-sectional view of portion A in
FIG. 4 is a magnified cross-sectional view of portion B in
FIG. 5 is a schematic view of a distribution of graphene platelets on a grain boundary of a multilayer capacitor according to an exemplary embodiment in the …
FIGS. 6A to 6D are graphs illustrating measurements of a dielectric constant, DC Bias properties, permittivity change according to temperature, and …
FIG. 7 is a distribution of grain boundary size for the Example 1 as compared to the Comparative Example 1; and
FIG. 8 is graphs illustrating a result of Raman analysis of a grain boundary of a dielectric layer including graphene platelets (Examples 1, 2 and 3) and a …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A multilayer capacitor comprising: a body including an internal electrode alternately disposed with a dielectric layer; and an external electrode disposed on the body and connected to the internal electrode, wherein the dielectric layer includes a plurality of grains and grain boundaries disposed between adjacent grains, and the grain boundaries include a plurality of graphene platelets.
The multilayer capacitor of claim 1, wherein at least one surface of the plurality of graphene platelets is disposed along a surface of the grain.
The multilayer capacitor of claim 1, wherein graphene platelets including ten or more layers, among the plurality of graphene platelets, are provided in an amount of 5% or less of overall graphene platelets, based on a total number of graphene platelets in the multilayer capacitor.
The multilayer capacitor of claim 1, wherein the plurality of graphene platelets have an instability index of 0.1 or less.
The multilayer capacitor of claim 1, wherein the dielectric layer has barium titanate (BaTi O₃) as a main component.
The multilayer capacitor of claim 1, wherein the graphene platelets are evenly dispersed in the grain boundary.
A multilayer capacitor comprising: a body including an internal electrode alternately disposed with a dielectric layer; and an external electrode disposed on the body and connected to the internal electrode, wherein the dielectric layer includes a plurality of grains and grain boundaries disposed between adjacent grains, and in the grain boundaries, peaks are detected in each of a D-band and a G-band when Raman analysis is performed.
The multilayer capacitor of claim 8, wherein the grain boundaries include a plurality of graphene platelets.
A dielectric material including a plurality of grains, and a plurality of grain boundaries disposed between adjacent grains, wherein the grain boundaries include a plurality of graphene platelets.
The dielectric material of claim 15, wherein at least one surface of the plurality of graphene platelets is disposed along a surface of the grain.
The dielectric material of claim 15, wherein graphene platelets including ten or more layers, among the plurality of graphene platelets, are provided in an amount of 5 % or less of overall graphene platelets, based on a total number of graphene platelets in the dielectric material.
The dielectric material of claim 15, wherein the plurality of graphene platelets have an instability index of 0.1 or less.
The dielectric material of claim 15, wherein the dielectric material has barium titanate (BaTi O₃) as a main component, and a content of the plurality of graphene platelets is 0.3 wt% to 3.0 wt %, based on a total weight of the barium titanate (BaTiO 3).
The dielectric material of claim 15, wherein the graphene platelets are evenly dispersed in the grain boundary.
Layer stacks claimed or described, ordered top of device to substrate.
multilayer capacitor
Materials described outside the worked examples.
graphene platelets
barium titanate
BaTiO₃
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 8 is graphs illustrating a result of Raman analysis of a grain boundary of a dielectric layer including graphene platelets (Examples 1, 2 and 3) and a …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
instability index of graphene platelets (dispersivity measure) | ≤ 0.1 | graphene platelets |
graphene platelet content in BaTiO3-based dielectric | 0.3–3 wt% |
Patent
Atlas literature
Patent
US 10,699,850Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a schematic perspective view of a multilayer capacitor according to an exemplary embodiment in the present disclosure;
FIG. 2 is a cross-sectional view taken along line I-I' in
FIG. 3 is a magnified cross-sectional view of portion A in
FIG. 4 is a magnified cross-sectional view of portion B in
FIG. 5 is a schematic view of a distribution of graphene platelets on a grain boundary of a multilayer capacitor according to an exemplary embodiment in the …
FIGS. 6A to 6D are graphs illustrating measurements of a dielectric constant, DC Bias properties, permittivity change according to temperature, and …
FIG. 7 is a distribution of grain boundary size for the Example 1 as compared to the Comparative Example 1; and
FIG. 8 is graphs illustrating a result of Raman analysis of a grain boundary of a dielectric layer including graphene platelets (Examples 1, 2 and 3) and a …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A multilayer capacitor comprising: a body including an internal electrode alternately disposed with a dielectric layer; and an external electrode disposed on the body and connected to the internal electrode, wherein the dielectric layer includes a plurality of grains and grain boundaries disposed between adjacent grains, and the grain boundaries include a plurality of graphene platelets.
The multilayer capacitor of claim 1, wherein at least one surface of the plurality of graphene platelets is disposed along a surface of the grain.
The multilayer capacitor of claim 1, wherein graphene platelets including ten or more layers, among the plurality of graphene platelets, are provided in an amount of 5% or less of overall graphene platelets, based on a total number of graphene platelets in the multilayer capacitor.
The multilayer capacitor of claim 1, wherein the plurality of graphene platelets have an instability index of 0.1 or less.
The multilayer capacitor of claim 1, wherein the dielectric layer has barium titanate (BaTi O₃) as a main component.
The multilayer capacitor of claim 1, wherein the graphene platelets are evenly dispersed in the grain boundary.
A multilayer capacitor comprising: a body including an internal electrode alternately disposed with a dielectric layer; and an external electrode disposed on the body and connected to the internal electrode, wherein the dielectric layer includes a plurality of grains and grain boundaries disposed between adjacent grains, and in the grain boundaries, peaks are detected in each of a D-band and a G-band when Raman analysis is performed.
The multilayer capacitor of claim 8, wherein the grain boundaries include a plurality of graphene platelets.
A dielectric material including a plurality of grains, and a plurality of grain boundaries disposed between adjacent grains, wherein the grain boundaries include a plurality of graphene platelets.
The dielectric material of claim 15, wherein at least one surface of the plurality of graphene platelets is disposed along a surface of the grain.
The dielectric material of claim 15, wherein graphene platelets including ten or more layers, among the plurality of graphene platelets, are provided in an amount of 5 % or less of overall graphene platelets, based on a total number of graphene platelets in the dielectric material.
The dielectric material of claim 15, wherein the plurality of graphene platelets have an instability index of 0.1 or less.
The dielectric material of claim 15, wherein the dielectric material has barium titanate (BaTi O₃) as a main component, and a content of the plurality of graphene platelets is 0.3 wt% to 3.0 wt %, based on a total weight of the barium titanate (BaTiO 3).
The dielectric material of claim 15, wherein the graphene platelets are evenly dispersed in the grain boundary.
Layer stacks claimed or described, ordered top of device to substrate.
multilayer capacitor
Materials described outside the worked examples.
graphene platelets
barium titanate
BaTiO₃
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 8 is graphs illustrating a result of Raman analysis of a grain boundary of a dielectric layer including graphene platelets (Examples 1, 2 and 3) and a …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
instability index of graphene platelets (dispersivity measure) | ≤ 0.1 | graphene platelets |
graphene platelet content in BaTiO3-based dielectric | 0.3–3 wt% |
Patent
Atlas literature
Patent
US 10,699,850Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a schematic perspective view of a multilayer capacitor according to an exemplary embodiment in the present disclosure;
FIG. 2 is a cross-sectional view taken along line I-I' in
FIG. 3 is a magnified cross-sectional view of portion A in
FIG. 4 is a magnified cross-sectional view of portion B in
FIG. 5 is a schematic view of a distribution of graphene platelets on a grain boundary of a multilayer capacitor according to an exemplary embodiment in the …
FIGS. 6A to 6D are graphs illustrating measurements of a dielectric constant, DC Bias properties, permittivity change according to temperature, and …
FIG. 7 is a distribution of grain boundary size for the Example 1 as compared to the Comparative Example 1; and
FIG. 8 is graphs illustrating a result of Raman analysis of a grain boundary of a dielectric layer including graphene platelets (Examples 1, 2 and 3) and a …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A multilayer capacitor comprising: a body including an internal electrode alternately disposed with a dielectric layer; and an external electrode disposed on the body and connected to the internal electrode, wherein the dielectric layer includes a plurality of grains and grain boundaries disposed between adjacent grains, and the grain boundaries include a plurality of graphene platelets.
The multilayer capacitor of claim 1, wherein at least one surface of the plurality of graphene platelets is disposed along a surface of the grain.
The multilayer capacitor of claim 1, wherein graphene platelets including ten or more layers, among the plurality of graphene platelets, are provided in an amount of 5% or less of overall graphene platelets, based on a total number of graphene platelets in the multilayer capacitor.
The multilayer capacitor of claim 1, wherein the plurality of graphene platelets have an instability index of 0.1 or less.
The multilayer capacitor of claim 1, wherein the dielectric layer has barium titanate (BaTi O₃) as a main component.
The multilayer capacitor of claim 1, wherein the graphene platelets are evenly dispersed in the grain boundary.
A multilayer capacitor comprising: a body including an internal electrode alternately disposed with a dielectric layer; and an external electrode disposed on the body and connected to the internal electrode, wherein the dielectric layer includes a plurality of grains and grain boundaries disposed between adjacent grains, and in the grain boundaries, peaks are detected in each of a D-band and a G-band when Raman analysis is performed.
The multilayer capacitor of claim 8, wherein the grain boundaries include a plurality of graphene platelets.
A dielectric material including a plurality of grains, and a plurality of grain boundaries disposed between adjacent grains, wherein the grain boundaries include a plurality of graphene platelets.
The dielectric material of claim 15, wherein at least one surface of the plurality of graphene platelets is disposed along a surface of the grain.
The dielectric material of claim 15, wherein graphene platelets including ten or more layers, among the plurality of graphene platelets, are provided in an amount of 5 % or less of overall graphene platelets, based on a total number of graphene platelets in the dielectric material.
The dielectric material of claim 15, wherein the plurality of graphene platelets have an instability index of 0.1 or less.
The dielectric material of claim 15, wherein the dielectric material has barium titanate (BaTi O₃) as a main component, and a content of the plurality of graphene platelets is 0.3 wt% to 3.0 wt %, based on a total weight of the barium titanate (BaTiO 3).
The dielectric material of claim 15, wherein the graphene platelets are evenly dispersed in the grain boundary.
Layer stacks claimed or described, ordered top of device to substrate.
multilayer capacitor
Materials described outside the worked examples.
graphene platelets
barium titanate
BaTiO₃
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 8 is graphs illustrating a result of Raman analysis of a grain boundary of a dielectric layer including graphene platelets (Examples 1, 2 and 3) and a …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
instability index of graphene platelets (dispersivity measure) | ≤ 0.1 | graphene platelets |
graphene platelet content in BaTiO3-based dielectric | 0.3–3 wt% |
Patent
Atlas literature
Patent
US 10,699,850Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a schematic perspective view of a multilayer capacitor according to an exemplary embodiment in the present disclosure;
FIG. 2 is a cross-sectional view taken along line I-I' in
FIG. 3 is a magnified cross-sectional view of portion A in
FIG. 4 is a magnified cross-sectional view of portion B in
FIG. 5 is a schematic view of a distribution of graphene platelets on a grain boundary of a multilayer capacitor according to an exemplary embodiment in the …
FIGS. 6A to 6D are graphs illustrating measurements of a dielectric constant, DC Bias properties, permittivity change according to temperature, and …
FIG. 7 is a distribution of grain boundary size for the Example 1 as compared to the Comparative Example 1; and
FIG. 8 is graphs illustrating a result of Raman analysis of a grain boundary of a dielectric layer including graphene platelets (Examples 1, 2 and 3) and a …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A multilayer capacitor comprising: a body including an internal electrode alternately disposed with a dielectric layer; and an external electrode disposed on the body and connected to the internal electrode, wherein the dielectric layer includes a plurality of grains and grain boundaries disposed between adjacent grains, and the grain boundaries include a plurality of graphene platelets.
The multilayer capacitor of claim 1, wherein at least one surface of the plurality of graphene platelets is disposed along a surface of the grain.
The multilayer capacitor of claim 1, wherein graphene platelets including ten or more layers, among the plurality of graphene platelets, are provided in an amount of 5% or less of overall graphene platelets, based on a total number of graphene platelets in the multilayer capacitor.
The multilayer capacitor of claim 1, wherein the plurality of graphene platelets have an instability index of 0.1 or less.
The multilayer capacitor of claim 1, wherein the dielectric layer has barium titanate (BaTi O₃) as a main component.
The multilayer capacitor of claim 1, wherein the graphene platelets are evenly dispersed in the grain boundary.
A multilayer capacitor comprising: a body including an internal electrode alternately disposed with a dielectric layer; and an external electrode disposed on the body and connected to the internal electrode, wherein the dielectric layer includes a plurality of grains and grain boundaries disposed between adjacent grains, and in the grain boundaries, peaks are detected in each of a D-band and a G-band when Raman analysis is performed.
The multilayer capacitor of claim 8, wherein the grain boundaries include a plurality of graphene platelets.
A dielectric material including a plurality of grains, and a plurality of grain boundaries disposed between adjacent grains, wherein the grain boundaries include a plurality of graphene platelets.
The dielectric material of claim 15, wherein at least one surface of the plurality of graphene platelets is disposed along a surface of the grain.
The dielectric material of claim 15, wherein graphene platelets including ten or more layers, among the plurality of graphene platelets, are provided in an amount of 5 % or less of overall graphene platelets, based on a total number of graphene platelets in the dielectric material.
The dielectric material of claim 15, wherein the plurality of graphene platelets have an instability index of 0.1 or less.
The dielectric material of claim 15, wherein the dielectric material has barium titanate (BaTi O₃) as a main component, and a content of the plurality of graphene platelets is 0.3 wt% to 3.0 wt %, based on a total weight of the barium titanate (BaTiO 3).
The dielectric material of claim 15, wherein the graphene platelets are evenly dispersed in the grain boundary.
Layer stacks claimed or described, ordered top of device to substrate.
multilayer capacitor
Materials described outside the worked examples.
graphene platelets
barium titanate
BaTiO₃
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 8 is graphs illustrating a result of Raman analysis of a grain boundary of a dielectric layer including graphene platelets (Examples 1, 2 and 3) and a …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
instability index of graphene platelets (dispersivity measure) | ≤ 0.1 | graphene platelets |
graphene platelet content in BaTiO3-based dielectric | 0.3–3 wt% |
dielectric material
dielectric material
dielectric material
dielectric material