CN102568797A - Magnetic film inducer - Google Patents
Magnetic film inducer Download PDFInfo
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- CN102568797A CN102568797A CN2012100360671A CN201210036067A CN102568797A CN 102568797 A CN102568797 A CN 102568797A CN 2012100360671 A CN2012100360671 A CN 2012100360671A CN 201210036067 A CN201210036067 A CN 201210036067A CN 102568797 A CN102568797 A CN 102568797A
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- magnetic film
- film
- double
- inducer
- soft magnetic
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Abstract
The invention relates to the field of inducers, in particular to a magnetic film inducer, which is mounted on small-size light electronic equipment. The magnetic film inducer comprises a soft magnetic film and a rectangular double-helix coil. The soft magnetic film comprises two layers which are arranged on two sides of the double-helix coil, and an insulation film is arranged between the soft magnetic film and the double-helix coil and has a film layer structure made of insulation materials. The magnetic film inducer has the advantages that the magnetic film inducer consisting of the soft magnetic film and the double-helix coil is thinner, smaller and lighter, capable of being manufactured by the like process of semi-conductor processing technology, easy to be integrated into function modules and favorable for accelerating miniaturization of portable electronic equipment as compared with a conventional volume type magnetic element consisting of a magnetic core and a coil.
Description
Technical field
The present invention relates to the inductor field, relate in particular to a kind of magnetic thin film inductor that is mounted on the miniaturization and electronic equipment.
Background technology
Light-duty portable high-performance electronic equipment is toward more and more lighter trend development, and these portable electric appts adopt single-power voltages such as capacity is high, the life-span is long Ni-MH battery or lithium ion battery mostly.Yet electronic equipment will be realized complicated function, must use various function components and parts, so, must convert single-power voltage into multi-power source voltage.And power source conversion needs converter, and the electronic equipment power source system has occupied larger volume, therefore is necessary to reduce the volume of power source conversion part, the invention discloses the magnetic element of film inductor formula, as the indispensable element of power source conversion part.
Summary of the invention
The objective of the invention is to overcome the problems referred to above, provide a kind of light-duty, be easy to be integrated into functional module, promote the magnetic thin film inductor of portable electric appts miniaturization.
For realizing above-mentioned purpose, the technical scheme that the present invention adopted is: the magnetic thin film inductor is characterized in that: comprise soft magnetic film, double-spiral coil; Soft magnetic film is divided into two-layer, is positioned at the both sides of double-spiral coil; Be provided with dielectric film between soft magnetic film and the double-spiral coil.
Aforesaid magnetic thin film inductor, described dielectric film are the film layer structures that is made up of insulating material.
Aforesaid magnetic thin film inductor, described double-spiral coil are rectangle.
Beneficial effect of the present invention: the film inductor that constitutes with soft magnetic film and double-spiral coil is compared with traditional volume type magnetic element of being made up of magnetic core, coil; The magnetic thin film inductor is thin, little, light; Can adopt the similar explained hereafter of semiconductor processing technology; Be easy to be integrated into functional module, promote the portable electric appts miniaturization.
Description of drawings
Fig. 1 is the structural representation of magnetic thin film inductor of the present invention;
Wherein, 1 soft magnetic film, 2 dielectric films, 3 double-spiral coils.
Embodiment
Fig. 1 is the preferred embodiments of the present invention, below in conjunction with accompanying drawing the present invention is further described: wherein, and 1 soft magnetic film, 2 dielectric films, 3 double-spiral coils.
According to Fig. 1, the magnetic thin film inductor is characterized in that: comprise soft magnetic film 1, double-spiral coil 3; Soft magnetic film 1 is divided into two-layer, is positioned at the both sides of double-spiral coil 3; Be provided with dielectric film 2 between soft magnetic film 1 and the double-spiral coil 3; Dielectric film 2 is the film layer structures that are made up of insulating material; Double-spiral coil 3 is a rectangle; Soft magnetic film 1 is made up of soft magnetic ferrites.
The film inductor that constitutes with soft magnetic film 1 and double-spiral coil 3 is compared with traditional volume type magnetic element of being made up of magnetic core, coil; The magnetic thin film inductor is thin, little, light; Can adopt the similar explained hereafter of semiconductor processing technology; Be easy to be integrated into functional module, promote the portable electric appts miniaturization.
The foregoing description does not limit the present invention in any form, and all employings are equal to the technical scheme that mode obtained of replacement or equivalent transformation, all drop on protection scope of the present invention.
Claims (3)
1. the magnetic thin film inductor is characterized in that: comprise soft magnetic film, double-spiral coil; Soft magnetic film is divided into two-layer, is positioned at the both sides of double-spiral coil; Be provided with dielectric film between soft magnetic film and the double-spiral coil.
2. magnetic thin film inductor according to claim 1 is characterized in that: described dielectric film is the film layer structure that is made up of insulating material.
3. magnetic thin film inductor according to claim 1 is characterized in that: described double-spiral coil is a rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100360671A CN102568797A (en) | 2012-02-17 | 2012-02-17 | Magnetic film inducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100360671A CN102568797A (en) | 2012-02-17 | 2012-02-17 | Magnetic film inducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102568797A true CN102568797A (en) | 2012-07-11 |
Family
ID=46413973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100360671A Pending CN102568797A (en) | 2012-02-17 | 2012-02-17 | Magnetic film inducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102568797A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020124341A1 (en) * | 2018-12-17 | 2020-06-25 | 华为技术有限公司 | Thin-film inductor and manufacturing method therefor, integrated circuit and terminal device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10135040A (en) * | 1996-10-29 | 1998-05-22 | Fuji Electric Co Ltd | Thin-film magnetic element and its method of manufacturing the same |
| KR20030020603A (en) * | 2001-09-04 | 2003-03-10 | 한국전기연구원 | Method for manufacturing a planar inductor having low coil loss |
| CN101320617A (en) * | 2007-06-08 | 2008-12-10 | 财团法人工业技术研究院 | Soft magnetic film inductor and magnetic multi-component alloy thin film |
| CN202443847U (en) * | 2012-02-17 | 2012-09-19 | 鸿康磁业电子（昆山）有限公司 | Magnetic thin film inductor |
-
2012
- 2012-02-17 CN CN2012100360671A patent/CN102568797A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10135040A (en) * | 1996-10-29 | 1998-05-22 | Fuji Electric Co Ltd | Thin-film magnetic element and its method of manufacturing the same |
| KR20030020603A (en) * | 2001-09-04 | 2003-03-10 | 한국전기연구원 | Method for manufacturing a planar inductor having low coil loss |
| CN101320617A (en) * | 2007-06-08 | 2008-12-10 | 财团法人工业技术研究院 | Soft magnetic film inductor and magnetic multi-component alloy thin film |
| CN202443847U (en) * | 2012-02-17 | 2012-09-19 | 鸿康磁业电子（昆山）有限公司 | Magnetic thin film inductor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020124341A1 (en) * | 2018-12-17 | 2020-06-25 | 华为技术有限公司 | Thin-film inductor and manufacturing method therefor, integrated circuit and terminal device |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120711 |