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inductor

A technology of inductors and external electrodes, applied in the field of inductors, can solve the problems of larger installation area, smaller area and lower Q value of inductors

Active Publication Date: 2021-08-31
MURATA MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the case of an inductor like Patent Document 1, increasing the inductance value increases the number of coil conductor layers
Therefore, the laminated body becomes larger in the stacking direction, and the mounting area of ​​the inductor becomes larger.
In addition, in the inductor as in Patent Document 1, if the number of turns of the coil conductor layer is 1 or more in order to increase the inductance value, the area inside the coil conductor layer becomes smaller and the Q value decreases.

Method used

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Embodiment Construction

[0029] One embodiment will be described below.

[0030] In addition, in the drawings, components are sometimes shown enlarged for easy understanding. Dimensional ratios of components may be different from actual ones, or may be different from those in other drawings. In addition, in cross-sectional views, hatching of some constituent elements may be omitted for easy understanding.

[0031] Such as figure 1 As shown, the inductor 1 has a component body 10 . The component main body 10 is formed in a substantially rectangular parallelepiped shape. In addition, in this specification, "cuboid shape" includes a cube whose corners and ridges are chamfered, and a cube whose corners and ridges are rounded. In addition, unevenness or the like may be formed on part or all of the main surface and the side surface. In addition, in the "cuboid shape", the opposing surfaces do not necessarily need to be completely parallel, and may be slightly inclined.

[0032] The component body 10 h...

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Abstract

The present invention provides inductors having desirable characteristics. The inductor has a coil (40) provided in the component body (10). The first end of the coil (40) is connected to the first external electrode (20), and the second end of the coil (40) is connected to the second external electrode (30). The coil (40) includes a plurality of coil conductor layers (41 to 48) provided along the width direction W. Each of the coil conductor layers ( 41 to 48 ) is formed in a spiral shape (spiral shape) with one or more turns. The height dimension T1 of the component body (10) is larger than the width dimension W1 (T1>W1).

Description

technical field [0001] The present invention relates to an inductor. Background technique [0002] Conventionally, electronic components have been mounted on various electronic devices. As one such electronic component, for example, a multilayer inductor is known (for example, refer to Patent Document 1). [0003] Patent Document 1: Japanese Patent Laid-Open No. 2013-153009 [0004] However, with the increase in frequency of electronic equipment such as mobile phones, electronic equipment requires small inductors corresponding to high-frequency signals. Miniaturization of inductors reduces inductance (L value) and Q value. Therefore, in inductors used for high-frequency signals, characteristics such as inductance value (L value) and Q value are improved. [0005] However, in the inductor like Patent Document 1, increasing the inductance value increases the number of coil conductor layers. Therefore, the laminated body becomes larger in the stacking direction, and the mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/28H01F27/32
CPCH01F27/2804H01F27/324H01F2027/2809H01F27/292H01F2017/004H01F17/0013H01F2017/0073H01F2017/002H01F27/29
Inventor 中嶋泰成三好弘己
Owner MURATA MFG CO LTD