JP3363508B2 - Organic semiconductor solid electrolytic capacitors - Google Patents
Organic semiconductor solid electrolytic capacitorsInfo
- Publication number
- JP3363508B2 JP3363508B2 JP07697493A JP7697493A JP3363508B2 JP 3363508 B2 JP3363508 B2 JP 3363508B2 JP 07697493 A JP07697493 A JP 07697493A JP 7697493 A JP7697493 A JP 7697493A JP 3363508 B2 JP3363508 B2 JP 3363508B2
- Authority
- JP
- Japan
- Prior art keywords
- organic semiconductor
- solid electrolytic
- case
- semiconductor solid
- electrolytic capacitor
- 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.)
- Expired - Fee Related
Links
Landscapes
- Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は固体電解質として、たと
えば、7、7、8、8-テトラシアノキノジメタン（以下ＴＣＮ
Ｑと称す。）の錯塩を用いた有機半導体固体電解コンデ
ンサに関するものである。The present invention relates to a solid electrolyte such as 7,7,8,8-tetracyanoquinodimethane (hereinafter TCN).
Call it Q. The present invention relates to an organic semiconductor solid electrolytic capacitor using a complex salt of).
【０００２】[0002]
【従来の技術】固体電解コンデンサの陰極用固体電解質
として、有機半導体、特にＴＣＮＱ錯塩を用いること
は、例えば特公昭６２−５２９３９号公報（Ｈ０１Ｇ９
／０２）に記載されている。2. Description of the Related Art The use of an organic semiconductor, particularly a TCNQ complex salt, as a solid electrolyte for a cathode of a solid electrolytic capacitor is disclosed in, for example, Japanese Patent Publication No. 62-52939 (H01G9).
/ 02).
【０００３】図４はこのような電解質に有機半導体を用
いた従来技術を示したものである。図において、１は化
成した陽極用エッチドアルミニウム箔と陰極箔とをセパ
レータ紙を介して巻回したコンデンサ素子である。８は
アルミニウム等のコンデンサケースであり、このコンデ
ンサケース８にＴＣＮＱ錯塩からなる有機半導体を適量
収納し、これを約２５０℃〜３５０℃の温度で融解液化
させ、この中にコンデンサ素子１を浸漬しＴＣＮＱ錯塩
をコンデンサ素子１に含浸させた後、急冷固化させる。
そしてその後、ケース８の開口部をエポキシ樹脂９、１
０で封口し完成させていた。なお、２、３はそれぞれリ
ードタブ端子、リード線である。FIG. 4 shows a conventional technique using an organic semiconductor for such an electrolyte. In the figure, reference numeral 1 is a capacitor element in which a formed anode aluminum foil for cathode and a cathode foil are wound with separator paper interposed therebetween. Reference numeral 8 denotes a capacitor case made of aluminum or the like, and an appropriate amount of an organic semiconductor made of a TCNQ complex salt is stored in the capacitor case 8, which is melted and liquefied at a temperature of about 250 ° C. to 350 ° C., and the capacitor element 1 is immersed in this. After the capacitor element 1 is impregnated with the TCNQ complex salt, it is rapidly cooled and solidified.
Then, after that, the opening of the case 8 is covered with the epoxy resin 9, 1
I closed it with 0 and completed it. In addition, 2 and 3 are a lead tab terminal and a lead wire, respectively.
【０００４】[0004]
【発明が解決しようとする課題】ところで、上述の従来
技術においては、コンデンサの諸特性および信頼性の向
上のため、内装樹脂10および外装樹脂９の複数の樹脂層
を形成しているが、これらの樹脂層の厚みの管理が極め
て困難であり、製造上作業性が悪いという問題があっ
た。In the above-mentioned prior art, a plurality of resin layers of the interior resin 10 and the exterior resin 9 are formed in order to improve various characteristics and reliability of the capacitor. It is extremely difficult to control the thickness of the resin layer, and there is a problem in that workability in manufacturing is poor.
【０００５】また、従来内装樹脂として、応力が小さく
コンデンサ素子に与えるダメージが少ないポリウレタン
樹脂を用いることが考えられているが、このポリウレタ
ン樹脂は耐湿性が極端に悪く、従来の構造では信頼性の
点で使用することができなかった。Further, it has been considered that a polyurethane resin having a small stress and a small damage to the capacitor element is used as the interior resin, but this polyurethane resin has extremely poor moisture resistance, so that the conventional structure is not reliable. Could not be used in point.
【０００６】[0006]
【課題を解決するための手段】上述の従来技術の問題点
を改善するため本発明による有機半導体固体電解コンデ
ンサは、弁作用を有する金属を陽極酸化した化成箔と陰
極箔とをセパレータ紙を介して巻回したコンデンサ素子
に有機半導体を含浸したのち冷却固化した有機半導体固
体電解コンデンサにおいて、内装ケースと外装ケースの
２重のケースを有するとともに、おのおののケースを異
なった封止材で封口することを特徴とするものである。In order to solve the above-mentioned problems of the prior art, the organic semiconductor solid electrolytic capacitor according to the present invention comprises a chemical conversion foil obtained by anodizing a metal having a valve action and a cathode foil via a separator paper. An organic semiconductor solid electrolytic capacitor in which a wound capacitor element is impregnated with an organic semiconductor and then cooled and solidified, and it has a double case of an inner case and an outer case, and each case is sealed with a different sealing material. It is characterized by.
【０００７】[0007]
【作用】内装ケースと内装の封口樹脂によってコンデン
サの漏れ電流特性等の電気的特性の向上を図り、外装ケ
ースと外装の封口樹脂によってコンデンサの気密性、信
頼性を保持する。The inner case and the inner sealing resin improve the electrical characteristics such as the leakage current characteristic of the capacitor, and the outer case and the outer sealing resin maintain the hermeticity and reliability of the capacitor.
【０００８】[0008]
【実施例】以下、図面にしたがって本発明の実施例を説
明する。図１は本発明による有機半導体固体電解コンデ
ンサの断面図を示したものであり、図において１はエッ
チング処理、化成処理を行ったアルミニウム箔を陽極箔
とし、対向陰極箔との間にセパレータ紙を介して円筒状
に巻き取ったコンデンサ素子、２はリードタブ端子、３
はリード線、４は内装ケース、５は内装封口樹脂、６は
外装ケース、７は外装封口樹脂である。内装ケース４お
よび外装ケース６はアルミニウムによって形成されてい
る。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of an organic semiconductor solid electrolytic capacitor according to the present invention. In FIG. 1, reference numeral 1 denotes an aluminum foil which has been subjected to etching treatment and chemical conversion treatment as an anode foil, and a separator paper is provided between the aluminum foil and a counter cathode foil. 2 is a lead tab terminal, and 3 is a capacitor element wound in a cylindrical shape through
Is a lead wire, 4 is an interior case, 5 is an interior sealing resin, 6 is an exterior case, and 7 is an exterior sealing resin. The inner case 4 and the outer case 6 are made of aluminum.
【０００９】そして、本発明による有機半導体固体電解
コンデンサの製造は、まず、有機半導体であるＴＣＮＱ
錯塩（N-nブチルイソキノリニウムＴＣＮＱ2）の粉末を
内装ケース４に適量収納し、これを２８０℃〜３００℃
の温度で融解液化させるとともに、この中にコンデンサ
素子１を浸漬しＴＣＮＱ錯塩を含浸させる。含浸後内装
ケース４ごと急冷し、コンデンサ素子１に含浸したＴＣ
ＮＱ錯塩を冷却固化させる。そして、内装ケース４の開
口部を硬度ＪＩＳ Ａ ２０〜８０程度のポリウレタン
樹脂等の内装封口樹脂５にて封口する。その後、内装ケ
ース４より大きい外装ケース６に収納し、耐熱性が高く
アルミニウムとの接着力の強いエポキシ樹脂７によって
封口する。そして、最後に約１００℃の高温で約１時
間、コンデンサの規定電圧（直流電圧）を印加するエー
ジング処理を行って、目的とする有機半導体固体コンデ
ンサを完成させる。In order to manufacture the organic semiconductor solid electrolytic capacitor according to the present invention, first, the organic semiconductor TCNQ is used.
A proper amount of complex salt (Nn-butylisoquinolinium TCNQ2) powder is stored in the inner case 4, and this is stored at 280 ° C to 300 ° C.
At the same time, it is melted and liquefied at the same time, and the capacitor element 1 is dipped in this and impregnated with the TCNQ complex salt. After impregnation, the inner case 4 is rapidly cooled and the capacitor element 1 is impregnated with TC.
The NQ complex salt is cooled and solidified. Then, the opening of the inner case 4 is sealed with an inner sealing resin 5 such as polyurethane resin having a hardness of JIS A 20-80. Then, it is housed in an outer case 6 larger than the inner case 4 and sealed with an epoxy resin 7 having high heat resistance and a strong adhesive force with aluminum. Finally, an aging process of applying a specified voltage (DC voltage) of the capacitor at a high temperature of about 100 ° C. for about 1 hour is performed to complete the target organic semiconductor solid capacitor.
【００１０】表１は本発明による有機半導体固体電解コ
ンデンサと、コンデンサケースが１つしかない従来技術
によるものとの初期特性を示したものであり、いずれも
定格１０Ｖ、２２０μＦの電解コンデンサである。Table 1 shows the initial characteristics of the organic semiconductor solid electrolytic capacitor according to the present invention and the conventional one having only one capacitor case, both of which are rated at 10 V and 220 μF.
【００１１】[0011]
【表１】 [Table 1]
【００１２】本発明による有機半導体固体電解コンデン
サは、内装樹脂にポリウレタン樹脂を用いることができ
るようになり、従来技術と比較して、電気的特性、特に
Ｌ.Ｃ.特性が向上した。また、内装樹脂の樹脂層厚みを
精度良く管理することができるため、歩留まりが９％程
度向上した。In the organic semiconductor solid electrolytic capacitor according to the present invention, the polyurethane resin can be used as the interior resin, and the electric characteristics, especially the LC characteristics are improved as compared with the prior art. Further, since the resin layer thickness of the interior resin can be controlled with high accuracy, the yield was improved by about 9%.
【００１３】また、図２は８５℃、湿度８５％の耐湿負
荷信頼性試験を行った結果を示したものであり、静電容
量の変化率（ΔＣ／Ｃ）の経時変化を示したものであ
る。湿気はケースと封口樹脂との境界から侵入しやす
く、本発明ではケースを２重とすることにより湿気の侵
入を防止することができる。このため、本発明による有
機半導体固体電解コンデンサは従来技術と比較して、信
頼性が向上している。Further, FIG. 2 shows the results of a humidity resistance load reliability test at 85 ° C. and a humidity of 85%, showing the change with time of the rate of change in capacitance (ΔC / C). is there. Moisture easily enters from the boundary between the case and the sealing resin, and in the present invention, the case is doubled to prevent the invasion of humidity. Therefore, the organic semiconductor solid electrolytic capacitor according to the present invention has improved reliability as compared with the prior art.
【００１４】なお、本実施例では内装樹脂としてポリウ
レタン樹脂を用いたが、図３に示すように合成ゴム５’
を用いても同様の効果がある。Although polyurethane resin was used as the interior resin in this embodiment, as shown in FIG.
Also has the same effect.
【００１５】[0015]
【発明の効果】以上説明したように、本発明による有機
半導体固体電解コンデンサは、内装ケースと外装ケース
の２重のケースを有するとともに、おのおののケースを
異なった樹脂で封口するよう構成したので、電気的特性
および信頼性が向上するとともに歩留まりが高くなる。As described above, the organic semiconductor solid electrolytic capacitor according to the present invention has a double case of an inner case and an outer case, and each case is configured to be sealed with a different resin. The electrical characteristics and reliability are improved and the yield is increased.
【図１】本発明による有機半導体固体電解コンデンサの
断面図である。FIG. 1 is a cross-sectional view of an organic semiconductor solid electrolytic capacitor according to the present invention.
【図２】本発明による有機半導体固体電解コンデンサの
耐湿負荷試験の結果を示すグラフである。FIG. 2 is a graph showing the results of a moisture resistance load test of an organic semiconductor solid electrolytic capacitor according to the present invention.
【図３】本発明による有機半導体固体電解コンデンサ他
の実施例の断面図である。FIG. 3 is a cross-sectional view of another embodiment of the organic semiconductor solid electrolytic capacitor according to the present invention.
【図４】従来技術による有機半導体固体電解コンデンサ
の断面図である。FIG. 4 is a cross-sectional view of a conventional organic semiconductor solid electrolytic capacitor.
１ コンデンサ素子 ２ リードタブ端子 ３ リード線 ４ 内装ケース ５、５’ 内装封口樹脂 ６ 外装ケース ７ 外装封口樹脂 1 Capacitor element 2 Lead tab terminal 3 lead wire 4 interior case 5,5 'Interior sealing resin 6 exterior case 7 Exterior sealing resin
フロントページの続き (56)参考文献 特開 平３−116712（ＪＰ，Ａ) 特開 平４−302127（ＪＰ，Ａ) 実開 平６−11340（ＪＰ，Ｕ) 実公 昭40−12900（ＪＰ，Ｙ１) (58)調査した分野(Int.Cl.7，ＤＢ名) H01G 9/08 H01G 9/028 H01G 9/10 Continuation of the front page (56) Reference JP-A-3-116712 (JP, A) JP-A-4-302127 (JP, A) Actual Kai-hei 6-11340 (JP, U) Actual public Sho-12-12900 (JP , Y1) (58) Fields investigated (Int.Cl. 7 , DB name) H01G 9/08 H01G 9/028 H01G 9/10
Claims (2)
箔と陰極箔とをセパレータ紙を介して巻回したコンデン
サ素子に有機半導体を含浸したのち冷却固化した有機半
導体固体電解コンデンサにおいて、内装ケースと外装ケ
ースの２重のケースを有するとともに、おのおののケー
スを異なった封止材で封口することを特徴とする有機半
導体固体電解コンデンサ。1. An organic semiconductor solid electrolytic capacitor in which a capacitor element in which a chemical conversion foil having a valve action and which is anodized and a cathode foil are wound via a separator paper is impregnated with an organic semiconductor and then solidified by cooling. An organic semiconductor solid electrolytic capacitor, which has a double case of an outer case and an outer case, and each case is sealed with a different sealing material.
ウレタン樹脂であることを特徴とする請求項１記載の有
機半導体固体電解コンデンサ。2. The organic semiconductor solid electrolytic capacitor according to claim 1, wherein the sealing material for sealing the inner case is a polyurethane resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07697493A JP3363508B2 (en) | 1993-04-02 | 1993-04-02 | Organic semiconductor solid electrolytic capacitors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07697493A JP3363508B2 (en) | 1993-04-02 | 1993-04-02 | Organic semiconductor solid electrolytic capacitors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06291001A JPH06291001A (en) | 1994-10-18 |
| JP3363508B2 true JP3363508B2 (en) | 2003-01-08 |
Family
ID=13620763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07697493A Expired - Fee Related JP3363508B2 (en) | 1993-04-02 | 1993-04-02 | Organic semiconductor solid electrolytic capacitors |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3363508B2 (en) |
-
1993
- 1993-04-02 JP JP07697493A patent/JP3363508B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06291001A (en) | 1994-10-18 |
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