ELECTRONIC COMPONENT

• US 20140285306A1
• Filed: 06/04/2014
• Published: 09/25/2014
• Est. Priority Date: 01/06/2012
• Status: Active Grant

• Current Assignee: Murata Manufacturing Co Limited
• Original Assignee: Murata Manufacturing Co Limited
• Inventors: SASAKI, Soitsu
• Granted Patent: US 9,911,529 B2
• Time in Patent Office: Days
• US Class Current: 336/200
• CPC Class Codes: H01F 17/0013 with stacked layers
• CPC Class Codes: H01F 2027/2809 on stacked layers
• CPC Class Codes: H01F 27/2804 Printed windings
• CPC Class Codes: H01F 27/292 Surface mounted devices
• CPC Class Codes: H01F 41/041 Printed circuit coils apparatus or processes for manufacturing printed circuits in general H05K3/00

Abstract

In an electronic component, a multilayer body is formed by a plurality of stacked insulator layers. A coil includes at least one coil conductor layer provided on at least one of the insulator layers. External electrodes are embedded in a lateral surface of the multilayer body which is formed by a series of continuous perimeter edges of the plurality of insulator layers, and includes a plurality of stacked external conductor layers provided on the plurality of insulator layers. The external electrodes have different shapes. The external conductor layers and the first coil conductor, which are provided on the same insulator layer, are simultaneously formed by photolithography or printing.

Claims

1. An electronic component comprising:

a multilayer body having a shape of a rectangular parallelepiped, and including a plurality of stacked insulator layers;

a first coil including at least one first coil conductor layer provided on at least one of the plurality of the insulator layers; and

first and second external electrodes embedded in a lateral surface of the multilayer body which is formed by a series of continuous perimeter edges of the plurality of insulator layers, the first and second external electrodes including a plurality of stacked external conductor layers, the plurality of stacked external conductor layers being provided on the plurality of insulator layers,

wherein the first external electrode and the second external electrode have different shapes, and

the external conductor layers and the first coil conductor being photolithographed or printed on the same insulator layer.

2. The electronic component according to claim 1, further comprising a second coil including at least one second coil conductor layer provided on at least one of the plurality of the insulator layers, wherein the external conductor layers and the second coil conductor are photolithographed or printed on the same insulator layer.

3. The electronic component according to claim 1, wherein a thickness of the first external electrode is different from a thickness of the second external electrode.

4. The electronic component according to claim 1, wherein a shape of a portion of the first external electrode which is exposed from the multilayer body is different from a shape of a portion of the second external electrode which is exposed from the multilayer body.

5. The electronic component according to claim 1, wherein

the first external electrode extends over three lateral surfaces, and

the second external electrode extends over two lateral surfaces.