JPH03139812A - Ceramic capacitor - Google Patents
Ceramic capacitorInfo
- Publication number
- JPH03139812A JPH03139812A JP27725389A JP27725389A JPH03139812A JP H03139812 A JPH03139812 A JP H03139812A JP 27725389 A JP27725389 A JP 27725389A JP 27725389 A JP27725389 A JP 27725389A JP H03139812 A JPH03139812 A JP H03139812A
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- capacitors
- ceramic capacitor
- chip
- electrodes
- 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
- 239000003985 ceramic capacitor Substances 0.000 title claims abstract description 34
- 239000011347 resin Substances 0.000 claims abstract description 9
- 229920005989 resin Polymers 0.000 claims abstract description 9
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 abstract description 18
- 238000005476 soldering Methods 0.000 abstract description 2
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
- H05K3/341—Surface mounted components
- H05K3/3421—Leaded components
Landscapes
- Ceramic Capacitors (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、磁器コンデンサの構造に関する。特に、取り
付ける回路基板上の占有面積を小さくできる磁器コンデ
ンサに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to the structure of a ceramic capacitor. In particular, the present invention relates to a ceramic capacitor that can reduce the area occupied on a circuit board to which it is attached.
［従来の技術及び発明が解決しようとする問題点］積層
磁器：１ンデンサは、小型で高容量で高い耐電Ｗを実現
でき、しかも、高い信頼性を有するもので、″ＦＬＴ−
回路の高密度化、信頼性の向上に大きく貢献するもので
あった。然し乍ら、更に、より高い容量と高い耐電圧を
有するコンデンサを製造４−乙場合、この形状は大きく
なる。[Problems to be solved by the prior art and the invention] Laminated porcelain: 1 capacitor is small, has high capacity, can achieve high withstand voltage W, and has high reliability.
This greatly contributed to higher circuit density and improved reliability. However, if a capacitor with higher capacitance and higher withstand voltage is manufactured, this shape becomes larger.
積層慇器コンデンサの製造工程の中で、誘電体材料中に
含まれる有機溶剤を乾燥させる工程があるが、コンデン
サの形状が大きくなると、この有機溶剤の乾燥が不十分
になり易い、乾燥が不十分であるとき、誘電体焼成時に
残った溶剤が急激に沸騰・気化し、誘電体内に気泡や亀
裂を残す、このために、大型の積層磁器コンデンサは量
産が困難であり、価格も高くなりがちであった。In the manufacturing process of multilayer capacitors, there is a step to dry the organic solvent contained in the dielectric material, but as the shape of the capacitor becomes larger, this organic solvent tends to be insufficiently dried. When the temperature is sufficient, the solvent remaining during dielectric firing boils and evaporates rapidly, leaving bubbles and cracks within the dielectric.For this reason, large multilayer ceramic capacitors are difficult to mass produce and tend to be expensive. Met.
また、仮に、大型の積層磁器コンデンサが製造されたと
しても、大型の電子部品は回路基板上の広い面積を占有
することになり、電子回路の高密度化を妨げるものであ
った。Furthermore, even if a large multilayer ceramic capacitor were manufactured, the large electronic components would occupy a large area on the circuit board, which would hinder the development of high density electronic circuits.
従って、本発明は、高い容量と高い耐電圧性を有する磁
器コンデンサの製造を容易にし、また、回路基板上の占
有面積の小さいコンデンサを提供することを目的とする
。そして、本発明は、組立て面積を少なくでき、高容量
で、高耐電圧の磁器コンデンサの製造を容易にし、また
、回路基板上の占有面積の小さいコンデンサを提供する
ことを目的とする。Therefore, an object of the present invention is to facilitate manufacturing of a ceramic capacitor having high capacitance and high voltage resistance, and to provide a capacitor that occupies a small area on a circuit board. Another object of the present invention is to provide a capacitor that requires less assembly area, has a high capacity, and has a high withstand voltage, which can be manufactured easily, and which occupies a small area on a circuit board.
［問題点を解決するための手段］
本発明は、２個以上のチップ型積層磁器コンデンサを積
み重ね、その各磁器コンデンサの！極を揃えて、各電極
をリボンリード線にハンダ付けし、且つ、その積み重ね
した構造体を絶縁性樹脂で覆った構造を特徴とする磁器
コンデンサである。[Means for Solving the Problems] The present invention stacks two or more chip-type multilayer ceramic capacitors, and solves the problem by stacking two or more chip-type multilayer ceramic capacitors. This is a ceramic capacitor characterized by a structure in which the poles are aligned, each electrode is soldered to a ribbon lead wire, and the stacked structure is covered with an insulating resin.
［作用］
本発明によると、チップ型積Ｘ４磁器コンデンサを積み
重ね、外部電極に、リボンリード線をハンダ付けし、且
つ、そのように組み立てたコンデンサの表面を樹脂で被
ったものである。[Function] According to the present invention, chip type X4 ceramic capacitors are stacked, ribbon lead wires are soldered to the external electrodes, and the surface of the thus assembled capacitors is covered with resin.
従来のチップ型積層磁器コンデンサでは、第２図Ａに示
すように、磁器コンデンサの容量を大きくしたい場合は
、複数のチップ型積Ｒ磁器コンデンサ１１を並列にラン
ド１２に沿って並べなければならなかった。これに対し
て、本発明のチップ型磁器コンデンサ１３では、第２図
Ｂに示すように、その複数のチップ型積層磁器コンデン
サに相当する容量と同じ容量の磁器コンデンサが、小さ
い占有面積にランド１２に沿って実装することができる
。In conventional chip-type multilayer ceramic capacitors, as shown in FIG. 2A, if it is desired to increase the capacitance of the ceramic capacitor, a plurality of chip-type product R ceramic capacitors 11 must be arranged in parallel along the lands 12. Ta. On the other hand, in the chip-type ceramic capacitor 13 of the present invention, as shown in FIG. It can be implemented according to the following.
次に、本発明の磁器コンデンサを、具体的な実施例によ
り、説明するが、本発明は、その説明により限定きれる
ものではない。Next, the ceramic capacitor of the present invention will be explained using specific examples, but the present invention is not limited by the explanation.
［実施例］
第１図は、本発明による磁器コンデンサの実施例の１つ
の断面図である。チップ型積層磁器コンデンサとしては
、形状は、ＥＩＡコード１８１２〃イブ（４，５１×３
．２■）、静電容量温度特性は、Ｘ７Ｒ特性（−５５℃
〜１２５℃において、八Ｃ／Ｃは±１５％以内のもので
ある）、定格電圧５００ｖ、公称静電容量４７ｎＦのも
のを用いた。各積層磁器コンデンサは、エポキシ系接着
剤により接合される０次に、リボンリード線（ｆ＠０．
１ｍｍ厚、３−幅、表面ハンダメツキ）を高温ハンダ（
融点２９０℃）でハンダ付けする。[Embodiment] FIG. 1 is a sectional view of one embodiment of a ceramic capacitor according to the present invention. As a chip type multilayer ceramic capacitor, the shape is EIA code 1812 (4,51 x 3
．． 2), capacitance temperature characteristics are X7R characteristics (-55℃
8 C/C is within ±15% at ~125° C.), a rated voltage of 500 V, and a nominal capacitance of 47 nF were used. Each multilayer ceramic capacitor has a ribbon lead wire (f@0.
1mm thick, 3-width, surface solder-plated) with high temperature solder (
Solder at a melting point of 290°C.
更に、表面を難燃性絶１／＆樹脂で被うことにより完成
する。Furthermore, the surface is coated with flame retardant resin.
本発明者らは、更に２２２０タイプ（５，７璽Ｘ５．Ｑ
ｍｌ、Ｚ５Ｕ特性、定格電圧２５ｖ１公称静′ＦＬＷ量
４．７μＦ）の積層磁器コンデンサを５個用いて、上述
の方法で、１つのコンデンサを作製した。この２種類の
試作品の形状、電気特性を第１表に示す、チップ型積層
磁器コンデンサのすぐれた特性をそのまま受は継いでい
ることが分かる。The inventors further discovered the 2220 type (5.7 x 5.Q).
One capacitor was manufactured by the method described above using five laminated ceramic capacitors each having a Z5U characteristic and a rated voltage of 25 V and a nominal static FLW amount of 4.7 μF. Table 1 shows the shapes and electrical characteristics of these two types of prototypes, and it can be seen that they inherit the excellent characteristics of chip-type multilayer ceramic capacitors.
Ｘ７Ｒ特性、定格５ｏｏｖ、容量１３０ｎＦの磁器コン
デンサは、従来、２２２０タイプ（基板−Ｌの投影面積
：５．７−Ｘ５．０■）よりも大型のものでなければ、
実現が困難であったが、本発明による磁器コンデンサで
は、比較的に製造の容易な１８１２タイプを用いている
ので、基板上の投影面積は、２２２０タイプ並みで、電
気特性も、チップ型積層磁器コンデンサのすぐれた特性
をそのまま受は継いでいることが分かる。Conventionally, a ceramic capacitor with X7R characteristics, a rating of 5oov, and a capacitance of 130nF must be larger than the 2220 type (projected area of board L: 5.7-X5.0).
Although it was difficult to realize this, the ceramic capacitor according to the present invention uses the 1812 type, which is relatively easy to manufacture, so the projected area on the board is comparable to that of the 2220 type, and the electrical characteristics are similar to that of the chip-type laminated porcelain capacitor. It can be seen that the Uke inherits the excellent characteristics of the capacitor.
［発明の効果］
本発明の磁器−１ンデンサは、以上のように、２個以上
のチップ型積層磁器コンデンサを積み重ねリボンリード
線をハンダ付けし、その組み立てたコンデンサの表面を
絶縁樹脂で被うことにより、１個のコンデンサとしたこ
とで、
第１に、比較的に製造し易い形状の小さいチップ型磁器
コンデンサを用いているので、安価の高い容μと高い耐
電圧性を有する磁器コンデンサを製造することができる
。[Effects of the Invention] As described above, the ceramic-1 capacitor of the present invention is produced by stacking two or more chip-type multilayer ceramic capacitors, soldering ribbon lead wires, and covering the surface of the assembled capacitors with an insulating resin. Firstly, since we use a small chip-type ceramic capacitor that is relatively easy to manufacture, we can use an inexpensive ceramic capacitor with a high capacity μ and high voltage resistance. can be manufactured.
第２に、回路基板上の占有面積の小さいコンデンサを製
造できる。Second, a capacitor can be manufactured that occupies a small area on a circuit board.
第３に、リボンリード線を用いているので、回路基板へ
の表面実装が可能である。Third, since ribbon lead wires are used, surface mounting on a circuit board is possible.
第４に、リボンリード線を用いて、更に、樹脂コートし
ているので、耐熱性、耐湿性、耐衝撃性等にすぐれてい
る。Fourth, since it uses a ribbon lead wire and is further coated with resin, it has excellent heat resistance, moisture resistance, impact resistance, etc.
以上のごとき顕著な技術的な効果が得られた。The remarkable technical effects described above were obtained.
第１図は、本発明の磁器コンデンサの１例を示す構造断
面図である。
第２図は、本発明の磁器コンデンサと従来の磁［主要部
分の符号の説明］
１ 、、、、、、、、チップ型積層磁器コンデンサ２
、、、、、、、、接着剤
３ 、、、、、、、、リボンリード線
４ 、、、、、、、、ハンダ
５ 、、、、、、、、絶縁性樹脂FIG. 1 is a structural cross-sectional view showing one example of the ceramic capacitor of the present invention. Fig. 2 shows a ceramic capacitor of the present invention and a conventional magnetic capacitor [Explanation of symbols of main parts] 1, Chip type multilayer ceramic capacitor 2
, , , , , , Adhesive 3 , , Ribbon lead wire 4 , Solder 5 , Insulating resin
Claims (1)
その各磁器コンデンサの電極を揃えて、各電極をリボン
リード線にハンダ付けし、且つ、その積み重ねした構造
体を絶縁性樹脂で覆った構造を特徴とする磁器コンデン
サ。Stacking two or more chip-type multilayer ceramic capacitors,
A ceramic capacitor characterized by a structure in which the electrodes of each ceramic capacitor are aligned, each electrode is soldered to a ribbon lead wire, and the stacked structure is covered with an insulating resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27725389A JPH03139812A (en) | 1989-10-26 | 1989-10-26 | Ceramic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27725389A JPH03139812A (en) | 1989-10-26 | 1989-10-26 | Ceramic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03139812A true JPH03139812A (en) | 1991-06-14 |
Family
ID=17580955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27725389A Pending JPH03139812A (en) | 1989-10-26 | 1989-10-26 | Ceramic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03139812A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140043723A1 (en) * | 2012-08-09 | 2014-02-13 | Murata Manufacturing Co., Ltd. | Capacitor component and capacitor component mounting structure |
-
1989
- 1989-10-26 JP JP27725389A patent/JPH03139812A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140043723A1 (en) * | 2012-08-09 | 2014-02-13 | Murata Manufacturing Co., Ltd. | Capacitor component and capacitor component mounting structure |
| US9867278B2 (en) * | 2012-08-09 | 2018-01-09 | Murata Manufacturing Co., Ltd. | Capacitor component and capacitor component mounting structure |
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