CAPACITOR COMPONENT

• US 20200135395A1
• Filed: 12/30/2019
• Published: 04/30/2020
• Est. Priority Date: 09/03/2018
• Status: Active Grant

• Current Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Original Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Inventors: KWON, Hyung Soon, CHA, Kyoung Jin, JO, Ji Hong
• Granted Patent: US 11,017,946 B2
• Time in Patent Office: Days
• CPC Class Codes: H01G 4/0085 Fried electrodes
• CPC Class Codes: H01G 4/012 Form of non-self-supporting electrodes
• CPC Class Codes: H01G 4/1227 based on alkaline earth titanates
• CPC Class Codes: H01G 4/224 Housing; Encapsulation
• CPC Class Codes: H01G 4/232 electrically connecting two or more layers of a stacked or rolled capacitor
• CPC Class Codes: H01G 4/248 the terminals embracing or surrounding the capacitive element, e.g. caps H01G4/252 takes precedence
• CPC Class Codes: H01G 4/30 Stacked capacitors H01G4/33 takes precedence

Abstract

A capacitor component includes a body including dielectric layers and first and second internal electrodes disposed to face each other while having the dielectric layer interposed therebetween; and first and second external electrodes disposed on an external surface of the body and electrically connected to the first and second internal electrodes, respectively. The body includes a capacitance forming portion including the first and second internal electrodes disposed to face each other while having the dielectric layer interposed therebetween and in which capacitance is formed, and cover portions formed on upper and lower surfaces of the capacitance forming portion, and hardness of the cover portions is 9.5 GPa or more and 14 GPa or less.

Claims

1. A capacitor component comprising:

a body including dielectric layers and first and second internal electrodes disposed to face each other while having the dielectric layers interposed therebetween, and including first and second surfaces opposing each other, third and fourth surfaces connected to the first and second surfaces and opposing each other, and fifth and sixth surfaces connected to the first to fourth surfaces and opposing each other; and

first and second external electrodes disposed on an external surface of the body and electrically connected to the first and second internal electrodes, respectively,

wherein the body includes a capacitance forming portion including the first and second internal electrodes disposed to face each other while having the dielectric layers interposed therebetween and in which capacitance is formed, and cover portions disposed on upper and lower surfaces of the capacitance forming portion, respectively, and

hardness of the cover portions is 9.5 GPa or more and 14 GPa or less.

2. The capacitor component of claim 1, wherein the cover portions have the hardness greater than that of the dielectric layers of the capacitance forming portion.

3. The capacitor component of claim 1, further comprising margin portions disposed on side surfaces of the capacitance forming portion.

4. The capacitor component of claim 1, wherein a thickness of each of the dielectric layer is 0.4 μ

m or less, and

a thickness of each of the first and second internal electrodes is 0.4 μ

m or less.

5. The capacitor component of claim 1, wherein a thickness of each of the cover portions is 20 μ

m or less.

6. The capacitor component of claim 1, wherein a distance between the third and fourth surfaces is 0.4 mm or less, and a distance between the fifth and sixth surfaces is 0.2 mm or less.

7. The capacitor component of claim 6, wherein the third and fourth surfaces oppose each other in a length direction of the body, and

the first and second external electrodes are disposed the third and fourth surfaces, respectively.

8. A capacitor component comprising:

a body including dielectric layers and first and second internal electrodes disposed to face each other while having the dielectric layers interposed therebetween, and including first and second surfaces opposing each other, third and fourth surfaces connected to the first and second surfaces and opposing each other, and fifth and sixth surfaces connected to the first to fourth surfaces and opposing each other; and

first and second external electrodes disposed on an external surface of the body and electrically connected to the first and second internal electrodes, respectively,

wherein the body includes a capacitance forming portion including the first and second internal electrodes disposed to face each other while having the dielectric layers interposed therebetween and in which capacitance is formed, and cover portions disposed on upper and lower surfaces of the capacitance forming portion, respectively,

each of the cover portions includes a first region adjacent to the internal electrode disposed at the outermost portion among the first and second internal electrodes and a second region adjacent to the external surface of the body, and

hardness of the first regions is 9.5 GPa or more and 14 GPa or less.

9. The capacitor component of claim 8, wherein the first regions of the cover portions have the hardness greater than that of the second regions of the cover portions.

10. The capacitor component of claim 8, wherein the first regions of the cover portions have the hardness greater than that of the dielectric layers of the capacitance forming portion.

11. The capacitor component of claim 8, further comprising margin portions disposed on side surfaces of the capacitance forming portion.

12. The capacitor component of claim 8, wherein a thickness of the dielectric layer is 0.4 μ

m or less, and

a thickness of each of the first and second internal electrodes is 0.4 μ

m or less.

13. The capacitor component of claim 8, wherein a thickness of each of the first regions of the cover portions is 20 μ

m or less.

14. The capacitor component of claim 8, wherein when a distance between the third and fourth surfaces is 0.4 mm or less and a distance between the fifth and sixth surfaces 0.2 mm or less.

15. The capacitor component of claim 14, wherein the third and fourth surfaces oppose each other in a length direction of the body, and

the first and second external electrodes are disposed the third and fourth surfaces, respectively.