JPH0344011A - Chip inductor - Google Patents
Chip inductorInfo
- Publication number
- JPH0344011A JPH0344011A JP17942089A JP17942089A JPH0344011A JP H0344011 A JPH0344011 A JP H0344011A JP 17942089 A JP17942089 A JP 17942089A JP 17942089 A JP17942089 A JP 17942089A JP H0344011 A JPH0344011 A JP H0344011A
- Authority
- JP
- Japan
- Prior art keywords
- chip
- magnetic green
- green sheets
- element body
- green sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004020 conductor Substances 0.000 claims abstract description 25
- 238000010304 firing Methods 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 229910052709 silver Inorganic materials 0.000 abstract description 3
- 239000004332 silver Substances 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Coils Or Transformers For Communication (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、各種の電子回路で用いられるチップ型インダ
クタに関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a chip-type inductor used in various electronic circuits.
〈従来の技術〉
近年、電子機器やハイブリッドＩＣの小型化、高集積化
及び高周波化に対する要望が強まるに従って表面実装可
能なチップ型インダクタの需要が増大している。<Prior Art> In recent years, as the demand for smaller size, higher integration, and higher frequency of electronic devices and hybrid ICs has increased, the demand for surface-mountable chip-type inductors has increased.
そして、従来から、この種のチップ型インダクタとして
は、外部電極が形成された基板上に保持された磁性体コ
アに巻線を施し、この巻線の端末を外部電極に接続して
なる構成の巻線型といわれるものが知られている。ある
いはまた、他のチ・７プ型インダクタとして、特公昭５
７−３９５２１号公報に記載されているように、磁性体
グリーンシートと導体パターンとを交互に印刷し、導体
パターンそれぞれの互いに異なる端末同士を順次接続す
ることによってコイル状導体線路を形成した構成の積層
型といわれるものも知られている。Conventionally, this type of chip-type inductor has a structure in which a magnetic core held on a substrate on which external electrodes are formed is wound, and the terminals of this winding are connected to the external electrodes. A type called a wire-wound type is known. Alternatively, as another chip type inductor,
As described in Publication No. 7-39521, a coiled conductor line is formed by printing magnetic green sheets and conductor patterns alternately and sequentially connecting different terminals of each conductor pattern. A so-called laminated type is also known.
〈発明が解決しようとする課題〉
ところで、前記従来の巻線型もしくは積層型といわれる
チップ型インダクタにおいては、その構造が複雑となり
、その製造に多大な手間がかかることから、量産性が劣
るとともに、コストアンプを招いてしまうという不都合
が生じていた。<Problems to be Solved by the Invention> Incidentally, the conventional chip-type inductor, which is said to be a wire-wound type or a laminated type, has a complicated structure and requires a great deal of effort to manufacture, resulting in poor mass productivity. This has caused the inconvenience of increasing the cost.
本発明はかかる従来の不都合を解消することができるチ
ップ型インダクタの提供を目的としていく課題を解決す
るための手段〉
本発明にかかるチップ型インダクタは、表裏面の隣合う
二辺に沿う周縁部に導体パターンが折り返し形成された
矩形平板状の磁性体グリーンシＩ−の複数枚を積層焼成
してなる素体を備え、かつ、この素体の内部には各磁性
体グリーンシートの互いに異なる一辺に形成された導体
パターンが順次重合して接続されたコイル状導体線路が
構成されていることを特徴とするものである。The present invention aims to provide a chip-type inductor capable of eliminating such conventional disadvantages. Means for Solving the Problems The chip-type inductor according to the present invention has a peripheral edge along two adjacent sides of the front and back surfaces. It has an element body made by laminating and firing a plurality of rectangular flat magnetic green sheets I- on which a conductive pattern is folded, and inside this element body there are different sides of each magnetic green sheet. The present invention is characterized in that a coiled conductor line is formed by sequentially overlapping and connecting conductor patterns formed in the above.
〈作用〉
」二記構成によれば、所定形状の導体パターンが形成さ
れた複数枚の磁性体グリーンシートを予め用意したうえ
、各磁性体グリーンシートの互いに異なる１辺に形成さ
れた導体パターンを互いに重合しながら複数枚の磁性体
グリーンシートを積層して焼成すれば、内部にコイル状
導体線路が構成された素体が容易に得られることになる
。<Operation> According to the configuration described in 2, a plurality of magnetic green sheets on which conductor patterns of a predetermined shape are formed are prepared in advance, and the conductor patterns formed on different sides of each magnetic green sheet are prepared in advance. By laminating and firing a plurality of magnetic green sheets while superimposing each other, an element body having a coiled conductor line formed inside can be easily obtained.
〈実施例〉
以下、本発明の実施例を図面に基づいて説明す第１図は
本発明にかかるチ・７プ型インダクタの素体を示す外観
斜視図、第２図はその分解斜視図であり、これらの図に
おける符号１はチップ型インダクタである。<Example> Hereinafter, an example of the present invention will be explained based on the drawings. Fig. 1 is an external perspective view showing the element body of a chip-type inductor according to the present invention, and Fig. 2 is an exploded perspective view thereof. 1 in these figures is a chip type inductor.
このチップ型インダクタ１は、磁性体グリーンシート２
の複数枚を積層して加圧圧着したうえ、焼成炉で焼成し
てなる素体３を備えている。そして、この素体３を構成
する磁性体グリーンシート２のそれぞれは矩形平板状に
形成されており、各磁性体グリーンシート２の表裏面の
隣合う二辺に沿う周縁部には、銀ペーストなどをスクリ
ーン印刷してなる第２図で示ずような導体バクーン４が
折り返し形成されている。そこで、これらの磁性体グリ
ーンシート２の互いに異なる一辺に形成されたカ一体パ
ターン４の一端４ａ、４ｂ同士を互いに重合しながら複
数枚の磁性体グリーンシート２を積層し、圧着したうえ
で焼成すれば、この素体３の内部には導体パターン４そ
れぞれの一端４ａ４ｂ同士が順次接続されて導通したコ
イル状導体線路が構成されていることになる。なお、磁
性体グリーンシート２は平面視正方形状に形成されてい
てもよく、この場合には、各磁性体グリーンシト２を交
互に９０度ずつ方向転換しながら積層したうえで圧着し
て焼成すればよいことになる。This chip type inductor 1 includes a magnetic green sheet 2
The element body 3 is formed by laminating and bonding a plurality of sheets under pressure and then firing them in a firing furnace. Each of the magnetic green sheets 2 constituting the element body 3 is formed into a rectangular flat plate shape, and the peripheral edges along two adjacent sides of the front and back surfaces of each magnetic green sheet 2 are coated with silver paste, etc. A conductive back cover 4 as shown in FIG. 2 is formed by folding back and screen-printing. Therefore, a plurality of magnetic green sheets 2 are stacked, one end 4a, 4b of the integral pattern 4 formed on different sides of these magnetic green sheets 2 are superimposed on each other, and the sheets are crimped and fired. For example, inside the element body 3, a coiled conductor line is constructed in which one ends 4a4b of each of the conductor patterns 4 are successively connected to each other and conductive. Note that the magnetic green sheets 2 may be formed into a square shape in plan view, and in this case, the magnetic green sheets 2 are laminated while changing direction alternately by 90 degrees, and then pressed and fired. It's a good thing.
そこで、このようにして得られたコイル状導体線路の端
末それぞれが露出している素体３の両端面に電極５とな
る金属キャップを嵌着し、かつ、コイル状導体線路が露
出している素体３の中途部周りを絶縁性樹脂からなる外
装材６によって被覆すれば、チップ型インダクタ１とし
て完成することになる。なお、電極５としては金属キャ
ップ乙こ限定されるものではなく、例えば、銀ベースＩ
・を素体３の両端に塗布したのち、素体３とともに焼成
して形成してもよい。また、この外装材６は、必ずしも
絶縁性樹脂に限定されるものではなく、例えば、磁性体
粉末を混入した絶縁性樹脂などであってもよいことはい
うまでもない。そして、電極５としての金属キャップが
両端に嵌着された千ノブ型インダクタ１は、そのままプ
リント配線基仮（図示していＺｆい）上の所定位置に実
装されることになる。Therefore, metal caps serving as electrodes 5 are fitted to both end faces of the element body 3, where each end of the coiled conductor line obtained in this way is exposed, and the coiled conductor line is exposed. The chip-type inductor 1 is completed by covering the middle part of the element body 3 with an exterior material 6 made of insulating resin. Note that the electrode 5 is not limited to a metal cap, and for example, a silver base I
* may be applied to both ends of the element body 3 and then fired together with the element body 3 to form it. Furthermore, it goes without saying that this exterior material 6 is not necessarily limited to insulating resin, and may be, for example, insulating resin mixed with magnetic powder. Then, the thousand-knob inductor 1 with metal caps as electrodes 5 fitted at both ends is mounted as is at a predetermined position on the printed wiring board (not shown).
〈発明の効果〉
以上説明したように、本発明にかかるチップ型インダク
タは、表裏面の隣合う二辺に沿う周縁部に導体パターン
が折り返し形成された矩形平板状の磁性体グリーンシー
トの複数枚を積層焼成してなる素体を備え、かつ、この
素体の内部には各磁性体グリーンシートの互いに異なる
一辺に形成された導体パターンが順次重合して接続され
たコイル状導体線路が構成されている。そこで、所定形
状の導体パターンが形成された複数枚の磁性体グリーン
シートを予め用意したうえ、各磁性体グリーンシートの
互いに異なる１辺に形成された導体パターンを互いに重
合しながら複数枚の磁性体グリーンシーＩ−を積層して
焼成すれば、内部にコイル状導体線路が構成された素体
が容易に得られることになる。したがって、このチップ
型インダクタにおいては、その構造が簡単となり、その
製造に要する手間が削減できることになり、量産性の向
上及びコストダウンを図ることが可能となる。<Effects of the Invention> As explained above, the chip-type inductor according to the present invention includes a plurality of rectangular flat magnetic green sheets each having a conductive pattern folded on the periphery along two adjacent sides of the front and back surfaces. It has an element body formed by laminating and firing the magnetic material, and inside this element body there is formed a coiled conductor line in which conductor patterns formed on different sides of each magnetic green sheet are sequentially superposed and connected. ing. Therefore, we prepared in advance a plurality of magnetic green sheets each having a conductor pattern of a predetermined shape formed thereon, and then overlapped the conductor patterns formed on different sides of each magnetic green sheet to form a plurality of magnetic sheets. If Green Sea I- is laminated and fired, an element body having a coiled conductor line inside can be easily obtained. Therefore, this chip-type inductor has a simple structure, and the labor required for its manufacture can be reduced, making it possible to improve mass productivity and reduce costs.
第１図及び第２図は本発明の実施例にかかり、第１図は
チップ型インダクタの素体を示す外観斜視図であり、第
２図はその分解斜視図である。
図における符号１はチップ型インダクタ、２は磁性体グ
リーンシート、３は素体、４は導体パターン、５番上電
極、６Ｇよ外製月である。1 and 2 show an embodiment of the present invention; FIG. 1 is an external perspective view showing the element body of a chip-type inductor, and FIG. 2 is an exploded perspective view thereof. In the figure, numeral 1 is a chip type inductor, 2 is a magnetic green sheet, 3 is an element body, 4 is a conductor pattern, 5 is the top electrode, and 6G is an externally manufactured moon.
Claims (1)
が折り返し形成された矩形平板状の磁性体グリーンシー
トの複数枚を積層焼成してなる素体を備え、かつ、この
素体の内部には各磁性体グリーンシートの互いに異なる
一辺に形成された導体パターンが順次重合して接続され
たコイル状導体線路が構成されていることを特徴とする
チップ型インダクタ。(1) An element body formed by laminating and firing a plurality of rectangular flat magnetic green sheets each having a conductive pattern folded back and formed on the periphery along two adjacent sides of the front and back surfaces, and A chip-type inductor characterized in that a coil-shaped conductor line is constructed in which conductor patterns formed on different sides of each magnetic green sheet are sequentially overlapped and connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17942089A JPH0344011A (en) | 1989-07-12 | 1989-07-12 | Chip inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17942089A JPH0344011A (en) | 1989-07-12 | 1989-07-12 | Chip inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0344011A true JPH0344011A (en) | 1991-02-25 |
Family
ID=16065557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17942089A Pending JPH0344011A (en) | 1989-07-12 | 1989-07-12 | Chip inductor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0344011A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0653799A2 (en) * | 1993-10-12 | 1995-05-17 | Murata Manufacturing Co., Ltd. | High-frequency use non-reciprocal circuit element |
| EP0618636A3 (en) * | 1993-03-31 | 1995-10-04 | Tdk Corp | Multi-layer microwave circulator. |
-
1989
- 1989-07-12 JP JP17942089A patent/JPH0344011A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0618636A3 (en) * | 1993-03-31 | 1995-10-04 | Tdk Corp | Multi-layer microwave circulator. |
| EP0653799A2 (en) * | 1993-10-12 | 1995-05-17 | Murata Manufacturing Co., Ltd. | High-frequency use non-reciprocal circuit element |
| EP0653799A3 (en) * | 1993-10-12 | 1995-12-20 | Murata Manufacturing Co | High-frequency use non-reciprocal circuit element. |
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