# US 2019/0378659 A1 · Electronic component and method of manufacturing the same

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- Number: US 2019/0378659 A1
- Document ID: US20190378659A1
- Status: Published application
- Kind: A1
- Application number: 16/546,855
- Filed: 2019-08-21
- Published: 2019-12-12
- Earliest claimed: 2016-03-18
- Assignees: Taiyo Yuden Co., Ltd.
- Applicants: Taiyo Yuden Co., Ltd.
- Inventors: Takuya MORIYA; Tsuyoshi OGINO; Koji OTSUKA
- Web page: https://patentgrep.com/patent/US20190378659A1

## CPC

- H01G 4/40: Structural combinations of fixed capacitors with other electric elements, the structure mainly consisting of a capacitor, e.g. RC combinations
- H01F 5/00: Coils (superconducting coils H01F6/06; fixed inductances of the signal type H01F17/00)
- H01F 5/003: {Printed circuit coils}
- H01F 17/0013: {with stacked layers}
- H01F 27/292: {Surface mounted devices}
- H01F 41/041: {Printed circuit coils (apparatus or processes for manufacturing printed circuits in general H05K3/00)}
- H01G 4/005: Electrodes
- H01F 2017/0026: {Multilayer LC-filter}
- H01G 4/012: Form of non-self-supporting electrodes
- 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)
- H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES

## Abstract

An electronic component according one embodiment of the disclosure includes an insulator, an internal conductor, and an external electrode. The insulator is made of a material containing resin. The insulator includes a first insulating layer that has a first bonding surface perpendicular to one axial direction and a second insulating layer bonded to the first bonding surface. The internal conductor includes a plurality of first via conductive members provided in the first insulating layer and a plurality of second via conductive members provided in the second insulating layer. Each of the first via conductive members has a first contact connected to the corresponding second via conductive member at a position offset in the one axial direction with respect to the first bonding surface.

## Claims

### Claim 1

An electronic component, comprising:
an insulator made of a material containing resin, the insulator including a first insulating layer that has a first bonding surface perpendicular to one axial direction and a second insulating layer bonded to the first bonding surface;
an internal conductor forming a coil portion wound around an axis perpendicular to the one axial direction; and
an external electrode provided on the insulator and electrically coupled to the internal conductor,
wherein the internal conductor includes a plurality of first conductive members provided in the first insulating layer and a plurality of second conductive members provided in the second insulating layer, each of the first conductive members includes a first contact that is situated at a position offset in the one axial direction with respect to the first bonding surface and connected to the corresponding second conductive member; and
wherein the first contact intervenes between the first conductive member and the second conductive member.

### Claim 2 (depends on 1)

The electronic component of claim 1, wherein
the insulator further includes a third insulating layer that has a second bonding surface bonded to the second insulating layer, and
the internal conductor further includes a plurality of third conductive members provided in the third insulating layer, each of the third conductive members including a second contact that is situated at a position offset in the one axial direction with respect to the second bonding surface and connected to the corresponding second conductive member.

### Claim 3 (depends on 2)

The electronic component of claim 2, wherein
the internal conductor includes:
a plurality of connecting conductive members provided in the first insulating layer, each of the connecting conductive members coupling predetermined two first conductive members among the plurality of first conductive members;
a plurality of second connecting conductive members provided in the third insulating layer, each of the second connecting conductive members coupling predetermined two third conductive members among the plurality of third conductive members.

### Claim 4 (depends on 3)

The electronic component of claim 3, further comprising:
a capacitor element including a first internal electrode layer that is coupled to one end of the coil portion and a second internal electrode layer that is coupled to the other end of the coil portion and faces the first internal electrode layer in the one axial direction, the capacitor element being disposed between the coil portion and the external electrode.

### Claim 5 (depends on 1)

The electronic component of claim 1, wherein
the first and second conductive members are made of a metallic material containing copper, silver or nickel.

### Claim 6 (depends on 3)

The electronic component of claim 3, wherein
the plurality of first and second connecting conductive members are made of a metallic material containing copper, silver or nickel

### Claim 7 (depends on 1)

The electronic component of claim 1, wherein
the first contact is formed of a metallic material containing titanium or chromium.

### Claim 8 (depends on 2)

The electronic component of claim 2, wherein
the second contact is formed of a metallic material containing titanium or chromium.

### Claim 9 (depends on 1)

The electronic component of claim 1, wherein
the insulator contains resin and ceramic particles.

### Claim 10 (depends on 1)

The electronic component of claim 1, wherein
a width of the first conductive members and a width of the second conductive members are the same in a cross section orthogonal to the first bonding surface.

### Claim 11 (depends on 2)

The electronic component of claim 2, wherein
a width of the second conductive members and a width of the third conductive members are the same in a cross section orthogonal to the second bonding surface.

### Claim 12 (depends on 11)

The electronic component of claim 11, wherein
a width of the first conductive members and the width of the second conductive members are the same in a cross section orthogonal to the first bonding surface.

### Claim 13

An electronic component, comprising:
an insulator made of a material containing resin, the insulator including a first insulating layer that has a first bonding surface perpendicular to one axial direction and a second insulating layer bonded to the bonding surface;
an internal conductor forming a coil portion wound around an axis perpendicular to the one axial direction; and
an external electrode provided on the insulator and electrically coupled to the internal conductor,
wherein the internal conductor includes a plurality of conductive members provided in the first insulating layer, each of the conductive members extending in the one axial direction, and a plurality of connecting conductive members provided in the second insulating layer, each of the connecting conductive members coupling predetermined two conductive members among the plurality of conductive members;
wherein each of the conductive members includes a contact that is situated at a position offset in the one axial direction with respect to the bonding surface and connected to the corresponding connecting conductive member; and
wherein the contact intervenes between the conductive member and the connecting conductive member.

### Claim 14

A method of manufacturing a coil component, comprising:
forming a first insulating layer on a base plate;
forming a plurality of first conductive members on the first insulating layer;
forming a second insulating layer that covers the first conductive members on the first insulating layer;
polishing the second insulating layer to expose the first conductive members on a surface of the second insulating layer;
etching surfaces of the first conductive members exposed on the second insulating layer;
forming a plurality of second conductive members on the second insulating layer, the plurality of second conductive members being coupled to the plurality of first conductive members;
forming a third insulating layer that covers the second conductive members on the second insulating layer; and
forming an external electrode on the third insulating layer, the external electrode being electrically coupled to the second conductive members.

### Claim 15 (depends on 14)

The method of manufacturing a coil component according to claim 14, wherein
forming a plurality of second conductive members includes:
forming a seed layer that covers the surfaces of the first conductive members on the second insulating layer;
forming, on the seed layer, a resist pattern that has openings corresponding to the surfaces of the first conductive members; and
forming the plurality of second conductive members by electroplating using the resist pattern as a mask.
