Multilayer ceramic capacitor and method for producing the same
US-2016118188-A1 · Apr 28, 2016 · US
Dielectric composition and multilayer ceramic capacitor containing the same
US9799451B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9799451-B2 |
| Application number | US-201615202159-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 5, 2016 |
| Priority date | Dec 28, 2015 |
| Publication date | Oct 24, 2017 |
| Grant date | Oct 24, 2017 |
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Abstract
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A dielectric composition and a multilayer ceramic capacitor containing the same are provided. The dielectric composition contains an oxide of Ba and Ti as a main ingredient, and the main ingredient is represented by (Ba 1-x (Na, Ca) x )TiO 3 , where 0.005≦x≦0.035 and 0.994<(Ba 1-x (Na, Ca) x )/Ti<1.003.
First claim
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What is claimed is: 1. A dielectric composition comprising an oxide of Ba and Ti as a main ingredient, wherein the main ingredient is represented by (Ba 1-x Na x )TiO 3 , where 0.0055≦x≦0.035 and 0.994<(Ba 1-x Na x )/Ti<1.003. 2. The dielectric composition of claim 1 , further comprising 0.1 to 1.0 mol % of a first accessory ingredient based on 100 mol % of the main ingredient, wherein the first accessory ingredient is an oxide or carbonate of at least one among Mn, V, Cr, Fe, Ni, Co, Cu, and Zn. 3. The dielectric composition of claim 2 , further comprising 0.1 to 1.0 mol % of a second accessory ingredient based on 100 mol % of the main ingredient, wherein the second accessory ingredient is an oxide or carbonate of at least one of Mg and Al. 4. A dielectric composition comprising an oxide of Ba and Ti as a main ingredient and 0.1 to 1.0 mol % of an accessory ingredient based on 100 mol % of the main ingredient, wherein the main ingredient is represented by (Ba 1-x Na x )TiO 3 , where 0.005≦x≦0.035 and 0.994<(Ba 1-x Na x )/Ti<1.003, or (Ba 1-x Ca x )TiO 3 , where 0.005≦x≦0.035 and 0.994<(Ba 1-x Ca x )/Ti<1.003, and the accessory ingredient is an oxide or carbonate of at least one among Ce, Nb, La, and Sb. 5. The dielectric composition of claim 1 , further comprising 0.1 to 1.0 mol % of an accessory ingredient based on 100 mol % of the main ingredient, wherein the accessory ingredient is an oxide or carbonate of at least one of Si, Ba, Ca, and Al. 6. The dielectric composition of claim 1 , further comprising 0.1 to 1.0 mol % of an accessory ingredient based on 100 mol % of the main ingredient, wherein the accessory ingredient is a glass compound containing Si. 7. A multilayer ceramic capacitor comprising a ceramic body in which dielectric layers and internal electrodes are alternately stacked, wherein the dielectric layer contains a dielectric composition containing an oxide of Ba and Ti as a main ingredient, and the main ingredient is represented by (Ba 1-x Na x )TiO 3 , where 0.005≦x≦0.035 and 0.994<(Ba 1-x Na x )/Ti<1.003. 8. The multilayer ceramic capacitor of claim 7 , wherein the internal electrode contains nickel (Ni). 9. The multilayer ceramic capacitor of claim 7 , wherein the dielectric composition further contains 0.1 to 1.0 mol % of a first accessory ingredient based on 100 mol % of the main ingredient, wherein the first accessory ingredient is an oxide or carbonate of at least one among Mn, V, Cr, Fe, Ni, Co, Cu, and Zn. 10. The multilayer ceramic capacitor of claim 9 , wherein the dielectric composition further contains 0.1 to 1.0 mol % of a second accessory ingredient based on 100 mol % of the main ingredient, wherein the second accessory ingredient is an oxide or carbonate of at least one of Mg and Al. 11. The multilayer ceramic capacitor of claim 10 , wherein the dielectric composition further contains 0.1 to 1.0 mol % of a third accessory ingredient based on 100 mol % of the main ingredient, wherein the third accessory ingredient is an oxide or carbonate of at least one among Ce, Nb, La, and Sb. 12. The multilayer ceramic capacitor of claim 11 , wherein the dielectric composition further contains 0.1 to 1.0 mol % of a fourth accessory ingredient based on 100 mol % of the main ingredient, wherein the fourth accessory ingredient is an oxide or carbonate of at least one of Si, Ba, Ca, and Al. 13. The multilayer ceramic capacitor of claim 11 , wherein the dielectric composition further contains 0.1 to 1.0 mol % of a fourth accessory ingredient based on 100 mol % of the main ingredient, wherein the fourth accessory ingredient is a glass compound containing Si. 14. The dielectric composition of claim 1 , further comprising 0.1 to 1.0 mol % of an accessory ingredient based on 100 mol % of the main ingredient, wherein the accessory ingredient is an oxide or carbonate of at least one among Ce, Nb, La, and Sb. 15. A multilayer ceramic capacitor comprising a ceramic body in which dielectric layers and internal electrodes are alternately stacked, wherein the dielectric layer contains the dielectric composition of claim 4 .
Assignees
Inventors
Classifications
Zinc oxides, zincates, cadmium oxides, cadmiates, mercury oxides, mercurates or oxide forming salts thereof · CPC title
Niobium oxides, niobates, tantalum oxides, tantalates, or oxide-forming salts thereof · CPC title
Copper oxides, cuprates or oxide-forming salts thereof, e.g. CuO or Cu2O · CPC title
Cerium oxides or oxide-forming salts thereof · CPC title
Lanthanum oxide or oxide-forming salts thereof · CPC title
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- What does patent US9799451B2 cover?
- A dielectric composition and a multilayer ceramic capacitor containing the same are provided. The dielectric composition contains an oxide of Ba and Ti as a main ingredient, and the main ingredient is represented by (Ba 1-x (Na, Ca) x )TiO 3 , where 0.005≦x≦0.035 and 0.994<(Ba 1-x (Na, Ca) x )/Ti<1.003.
- Who is the assignee on this patent?
- Samsung Electro Mech
- What technology area does this patent fall under?
- Primary CPC classification H01G4/1227. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Oct 24 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).