COIL COMPONENT AND MANUFACTURING METHOD OF COIL COMPONENT

• US 20200135374A1
• Filed: 09/17/2019
• Published: 04/30/2020
• Est. Priority Date: 10/31/2018
• Status: Active Application

• Current Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Original Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Inventors: You, Dae Hyung, Lee, Jong Min
• Application Number:
  US16/573,331
• Publication Number:
  US 20200135374A1
• Time in Patent Office: Days
• CPC Class Codes: H01F 17/0013 with stacked layers
• CPC Class Codes: H01F 17/04 with magnetic core
• CPC Class Codes: H01F 2003/106 Magnetic circuits using combinations of different magnetic materials
• CPC Class Codes: H01F 2017/0073 with a special conductive pattern, e.g. flat spiral
• CPC Class Codes: H01F 2017/048 with encapsulating core, e.g. made of resin and magnetic powder
• CPC Class Codes: H01F 2027/2809 on stacked layers
• CPC Class Codes: H01F 27/2804 Printed windings
• CPC Class Codes: H01F 27/2852 Construction of conductive connections, of leads
• CPC Class Codes: H01F 27/292 Surface mounted devices
• CPC Class Codes: H01F 41/04 for manufacturing coils coils for transformer or inductances H01F27/28
• CPC Class Codes: H01F 41/046 structurally combined with ferromagnetic material

Abstract

A coil component includes a body, a coil portion embedded in the body, and an insulating substrate embedded in the body, and having a support member supporting the coil portion, and first and second connection portions extending from the support member to opposing side surfaces of the body, respectively, and each of the first and second connection portions includes a pair of connection portions spaced apart from each other.

Claims

1. A coil component, comprising:

a body;

a coil portion embedded in the body; and

an insulating substrate embedded in the body, and including a support member supporting the coil portion, and first and second connection portions extending from the support member to opposing side surfaces of the body, respectively,

wherein each of the first and second connection portions includes a pair of connection portions spaced apart from each other.

2. The coil component of claim 1, wherein the body has an active portion with the coil portion disposed therein, and a cover portion disposed on the active portion, and

a thickness of the active portion is greater than a thickness of the cover portion.

3. The coil component of claim 1, wherein the first connection portion includes a pair of first connection portions and the second connection portion includes a pair of second connection portions, and

a separation distance between the pair of first connection portions is equal to a separation distance between the pair of second connection portions.

4. The coil component of claim 1, wherein both ends of the coil portion are respectively exposed to opposing end surfaces of the body connecting the opposing side surfaces of the body to each other.

5. The coil component of claim 1, wherein the first and second connection portions are symmetrical to each other.

6. The coil component of claim 1, wherein the coil portion includes:

a first coil pattern having a planar and spiral shape and disposed on one side of the insulating substrate;

a second coil pattern having a planar and spiral shape and disposed on another side of the insulating substrate opposing the one side of the insulating substrate; and

a via penetrating through the insulating substrate to connect the first coil pattern to the second coil pattern.

7. The coil component of claim 6, wherein the body has a first cover portion defined as a portion of the body disposed above the first coil pattern and a second cover portion defined as a portion of the body disposed below the first coil pattern, and

thicknesses of the first and second coil patterns are greater than thicknesses of the first and second cover portions, respectively.

8. The coil component of claim 1, wherein the body includes an insulating resin and magnetic powder.

9. The coil component of claim 1, further comprising:

first and second external electrodes disposed on the body, and connected to both ends of the coil portion, respectively.

10. The coil component of claim 1, wherein an insulating film is disposed on an exterior of the insulating substrate and an exterior of the coil portion.

11. The coil component of claim 1, wherein the first and second connection portions do not overlap the coil portion in a stacking direction of the coil portion and the insulting substrate.

12. A method for manufacturing a coil component, comprising:

forming a plurality of coil portions on an insulating substrate;

removing a portion of the insulating substrate, on which the plurality of coil portions are not formed;

forming a body by stacking a magnetic composite sheet, including an insulating resin and magnetic powder, on the insulating substrate; and

forming first and second external electrodes on a surface of the body,

wherein the removing a portion of the insulating substrate includes forming first and second connection portions, each of the first and second connection portions including a pair of connection portions in the insulating substrate.

13. A coil component, comprising:

a body;

a coil portion embedded in the body; and

an insulating substrate embedded in the body, and including a support member supporting the coil portion,

wherein the insulating substrate further includes;

a pair of first connection portions, spaced apart from each other, protruding from the support member and exposed to one side surface of the body; and

a pair of second connection portions, spaced apart from each other, protruding from the support member and exposed to another side surface of the body opposing the one side surface of the body.

14. The coil component of claim 13, wherein the body has an active portion with the coil portion disposed therein, and a cover portion disposed on the active portion, and

a thickness of the active portion is greater than a thickness of the cover portion.

15. The coil component of claim 13, wherein a separation distance between the pair of first connection portions is equal to a separation distance between the pair of second connection portions.

16. The coil component of claim 13, wherein both ends of the coil portion are respectively exposed to opposing end surfaces of the body connecting the opposing side surfaces of the body to each other.

17. The coil component of claim 13, wherein the pair of first connection portions and the pair of second connection portions are symmetrical to each other.

18. The coil component of claim 13, wherein the coil portion includes:

a first coil pattern having a planar and spiral shape and disposed on one side of the insulating substrate;

a second coil pattern having a planar and spiral shape and disposed on another side of the insulating substrate opposing the one side of the insulating substrate; and

a via penetrating through the insulating substrate to connect the first coil pattern to the second coil pattern.

19. The coil component of claim 18, wherein the body has a first cover portion defined as a portion of the body disposed above the first coil pattern and a second cover portion defined as a portion of the body disposed below the first coil pattern, and

thicknesses of the first and second coil patterns are greater than thicknesses of the first and second cover portions, respectively.

20. The coil component of claim 13, wherein the pair of first connection portions and the pair of second connection portions do not overlap the coil portion in a stacking direction of the coil portion and the insulting substrate.