Resin type inductor structure

A resin-type, inductive technology, applied in the field of inductors, can solve the problems of many manufacturing processes, complex structures, and complexity, and achieve the effect of reducing the volume, simplifying the manufacturing process, and improving the quality factor.

Pending Publication Date: 2022-05-27
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method is low in cost, but the structure is complicated, and the manufacturing process is many and complicated, which is not conducive to the integrated production of terminal electrodes.

Method used

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  • Resin type inductor structure
  • Resin type inductor structure
  • Resin type inductor structure

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Embodiment

[0026] A resin-type inductor structure, the structure of the resin inductor is composed of copper coils and copper pillars interconnected. In the inductor structure, the left side of the bottom copper coil is connected to the copper pillar, the right side is connected to the copper surface 109, and the bottom copper coil is connected to the copper surface 109, copper The column connections together form the bottom structure of the inductor; and the bottom copper coil is interconnected with the right end electrode 105; the top copper column is interconnected with the top left copper surface 101, and the top left copper surface 101 is interconnected with the left end electrode 104. The top right copper surface 102 is interconnected with the right terminal electrode 105;

[0027] The inductor structure includes N basic coil units 107 in the middle. Each basic coil unit 107 includes an upper layer coil, a lower layer coil and two copper pillars. The copper pillars are arranged betw...

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Abstract

The invention provides a resin type inductor structure which is different from a traditional inductor structure, the basic structure of the inductor is provided with an L-shaped end electrode and a coil is integrated, and the manufacturing process of the inductor is simplified. The structure of the resin inductor is composed of a copper coil and a copper column connected with the copper coil, the periphery of the inductor is surrounded by insulating medium resin, and an L-shaped terminal electrode is arranged on the periphery of the resin and is integrated with the coil. Wherein the number of basic coil units in the inductor is N, each layer of coil adopts a copper column to carry out interlayer interconnection, and the coil and the copper column spirally and alternately rise in the inductor; meanwhile, the bottom-layer copper coil and the copper surface are interconnected with the right-side end electrode, and the top-layer copper column and the copper surface are interconnected with the left-side end electrode; the peripheries of the coil and the copper column are wrapped by resin to form a cuboid shape, the L-shaped terminal electrode is arranged outside the resin and is constructed as a whole, and therefore the whole resin inductor is formed.

Description

technical field [0001] The invention belongs to the field of inductors, and particularly relates to a resin-type inductor structure. Background technique [0002] As one of the main passive components, inductors are widely used in power supply applications including DC-DC converters, voltage regulator modules and point-of-load (POL) converters as well as wireless / radio communication equipment. In the design of large-scale integrated circuits, inductors, as one of the three indispensable passive devices, are essential basic units in RF front-end and power electronic circuits such as impedance matching, voltage-controlled oscillators, and low-noise amplifiers. Since inductors play an important role in energy conversion and storage, they have important applications in power electronic circuit design. The minimum thickness of traditional discrete inductor devices is also about 0.4mm, which is more than ten times thicker than that of passive devices, while chip inductors can ach...

Claims

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Application Information

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IPC IPC(8): H01F27/29H01F27/30H01F27/32
CPCH01F27/29H01F27/327H01F27/303
Inventor 陈苑明方建荣王永霖赵兴林王守绪何知聪何为王翀周国云洪延
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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