JPS61110417A - Laminated type solid electrolytic capacitor and manufacture thereof - Google Patents
Laminated type solid electrolytic capacitor and manufacture thereofInfo
- Publication number
- JPS61110417A JPS61110417A JP59231904A JP23190484A JPS61110417A JP S61110417 A JPS61110417 A JP S61110417A JP 59231904 A JP59231904 A JP 59231904A JP 23190484 A JP23190484 A JP 23190484A JP S61110417 A JPS61110417 A JP S61110417A
- Authority
- JP
- Japan
- Prior art keywords
- electrolytic capacitor
- solid electrolytic
- sintered body
- molded
- manufacture
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は積層型固体電解コンデンサおよびその製造方法
に関し、特にコンデンサ素子構造の改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a multilayer solid electrolytic capacitor and a method for manufacturing the same, and particularly relates to an improvement in the structure of a capacitor element.
一般に固体電解コンデンサの素子は、第３図に示す如く
、タンタル、ニオブ、アルミニクムなどの弁作用を有す
る金属粉末に、前述の金属粉末と同種の陽極リード２の
一部を埋設してプレス加工し、円柱状、角柱状等の成形
体１を形成した後、真空焼結して多孔質構造を有する焼
結体３を形成する。次に焼結体３の周囲に誘電体層、お
よび固体電解質層を順次被覆形成し、その上にグラファ
イト、および銀ベーストなどの陰極引き出し層４を設け
て固体電解コンデンサ素子５を形成していた。Generally, the element of a solid electrolytic capacitor is made by embedding a part of the anode lead 2 of the same type as the metal powder in a valve-acting metal powder such as tantalum, niobium, or aluminum, and press-working the element, as shown in Figure 3. After forming a molded body 1 having a cylindrical shape, a prismatic shape, etc., vacuum sintering is performed to form a sintered body 3 having a porous structure. Next, a dielectric layer and a solid electrolyte layer were sequentially formed around the sintered body 3, and a cathode extraction layer 4 such as graphite and silver base was provided thereon to form a solid electrolytic capacitor element 5. .
しかし上述した従来の焼結体には次の欠点がある。 However, the conventional sintered body described above has the following drawbacks.
（イ）大容量の固体電解コンデンサでは、形状の大きな
焼結体を用いるため、焼結体の内部に薬品等を含浸させ
て誘電体層、固体電解質層等金形成する工程の薬品の浸
透性が悪い２そのため誘電損失、インピーダンス等の電
気的特性が悪くなる。したがって、その改善を図るため
に薬品の含浸回数を多くしなけれはならない。(a) Since large-capacity solid electrolytic capacitors use large-sized sintered bodies, the permeability of chemicals during the process of impregnating the inside of the sintered body with chemicals to form dielectric layers, solid electrolyte layers, etc. Poor 2 As a result, electrical characteristics such as dielectric loss and impedance deteriorate. Therefore, in order to improve this, it is necessary to increase the number of times the chemical is impregnated.
（ロ）一方、焼結体の為容量値（Ｈｉｇｈ−ＣＶ）化に
伴い、焼結体の多孔質構造も、より緻密になり、焼結体
内への薬品等の浸透性が悪化し、誘電損失、インピーダ
ンスおよび固体電解質の被り率等が悪化する。(b) On the other hand, as the capacitance value (High-CV) increases due to the sintered body, the porous structure of the sintered body also becomes denser, which deteriorates the permeability of chemicals etc. into the sintered body. Loss, impedance, solid electrolyte coverage, etc. deteriorate.
本発明の目的は、かかる従来欠点を解消した固体を解コ
ンデンサを提供すること忙ある。SUMMARY OF THE INVENTION It is an object of the present invention to provide a solid-state electrolytic capacitor that overcomes these conventional drawbacks.
本発明によれは、弁作用を有する金糸粉末をチップ状に
プレス成形した一対の陽極体に、一端を扁平１てした陽
極リードの扁平部を介挿させた固体ｍｓコンデンサ素子
を有することを特徴とする積層型固体′ａ解コンデンサ
力・得られ、さらに弁作用を有する金糸粉末をプレス成
形体して薄形の成形体を形成する工程と、成形体の一対
ｋｉｔ＞極り一ドの扁平部を介して積層・押圧したのち
、真空焼結して間隙部を有する焼結体を形成する工程と
を含むことを４１５Ｆ徴とする８１層型固体電解コンデ
ンサの製造方法をも得ら力る。The present invention is characterized in that it has a solid MS capacitor element in which a flat part of an anode lead with one end flattened is inserted between a pair of anode bodies made by press-molding gold thread powder having a valve action into chips. A step of press-molding the obtained gold thread powder with a valve action to form a thin molded body, and a pair of molded bodies with extremely flatness. The present invention also provides a method for manufacturing an 81-layer solid electrolytic capacitor having a 415F feature, which includes the step of laminating and pressing the capacitors through the 415F feature, and then vacuum sintering the capacitors to form a sintered body having a gap. .
〔実施例〕 以下に、本発明について図面を参照して説明する。〔Example〕 The present invention will be described below with reference to the drawings.
第１図および第２図は本発明の一実施例による固体電解
コンデンサの焼結体の構造を示す斜視図および陰極引き
出しへ形成後の素子の断面図である。1 and 2 are a perspective view showing the structure of a sintered body of a solid electrolytic capacitor according to an embodiment of the present invention, and a sectional view of the element after being formed into a cathode drawer.
図中参照む号１１ａ、ｌｌｂは弁作用を有する金属粉末
を薄型の板状にプレス加工した薄型のプレス成形体（以
後、成形体と略称）であり、１２は成形体１１ａ、ｌｌ
ｂと同種の金為線の−１をプレス等で扁平状に加工した
陽極リードである、公知のプレス手段によって形成した
薄型のプレス成形体１１ａおよびｌｌｂを平行状態に極
み重ねた後、その長手方向の中心線上ＶＣＩｌ＃極リー
ド１２を介挿させ、プレス叫の加圧手段で加圧して成形
体１１ａ、ｌｌｂと陽極リード１２を間隙部１１Ｃを設
けて圧着成形する。次にこの圧着成形体を真空焼結・一
体化して、焼結体１３を形成する。Reference numbers 11a and llb in the figure are thin press molded bodies (hereinafter abbreviated as molded bodies) obtained by pressing metal powder having valve action into thin plate shapes, and 12 are molded bodies 11a and llb.
Thin press-formed bodies 11a and llb, which are anode leads made by processing gold wire -1 of the same type as b into a flat shape using a press or the like, are stacked in a parallel state, and then their longitudinal sides are The VCI1# electrode lead 12 is inserted on the center line of the direction, and pressure is applied using a pressurizing means to bond and mold the molded bodies 11a, 11b and the anode lead 12 with a gap 11C provided. Next, this pressure-bonded body is vacuum sintered and integrated to form a sintered body 13.
次に本発明の実施例で用いた焼結体と、従来例で用いた
焼結体とを比較して詳細に説明する。Next, the sintered bodies used in the examples of the present invention and the sintered bodies used in the conventional examples will be compared and explained in detail.
従来例の焼結体としてタンタル粉末をプレス成型して直
径０．４ ｗｍの陽極リードの埋設部分の深さ３．０Ｉ
ＥＩＩ、全長４、Ｑ ｍ 、幅３． Ｑ ｗｘ 、厚さ
２． Ｑ ｍの板状の成形体を得た。次にこの成形体を
真空度１０−”ｔｏｒｒ温度１７００１：ｌ’の真空炉
で真空焼結して焼結体を形成した。一方、本発明例によ
る焼結体として、前述従来例と同一タンタル粉末をプレ
ス成形し、全長４．０ ｍ 、 ＠３．０關、厚さ１．
０簡の板状の成形体を得た。次忙上記の成形体の２枚を
、厚さ方向で２枚が平行に１なるように配置する。次に
直径０４闘の陽極リードの一端を長さ３． Ｑ ｖｔｎ
。In the conventional example, tantalum powder was press-molded as a sintered body, and the depth of the buried part of the anode lead with a diameter of 0.4 wm was 3.0 I.
EII, total length 4, Q m, width 3. Q wx , thickness 2. A plate-shaped molded product of Q m was obtained. Next, this molded body was vacuum sintered in a vacuum furnace at a vacuum level of 10" torr and a temperature of 17001:1' to form a sintered body. On the other hand, as a sintered body according to the example of the present invention, the same tantalum as the conventional example described above was used. The powder was press-molded to a total length of 4.0 m, @3.0 mm, and thickness of 1.
A plate-shaped molded product having a size of 0.0 cm was obtained. Two pieces of the above-mentioned molded body are arranged so that the two pieces are parallel to each other in the thickness direction. Next, connect one end of the anode lead with a diameter of 04 mm to a length of 3 mm. Q vtn
.
厚さ０．３ ｍａｒ 、にわたって扁平状に加工し、そ
の扁平部分を上記成形体の短辺の幅方向金２等分割する
巌上で、２！Ｘの成形体に挾み込み、陽極リードの扁平
部分か上下１ｃある成形体にそれぞれ０． Ｉ ｔａｎ
以上埋設するように、加圧・成形する。次の成形体を前
述同様の条件で真空焼結して、焼結体を形成した。Process it into a flat shape over a thickness of 0.3 mar, and divide the flat part into two equal parts in the width direction of the short side of the molded body, 2! Insert it into the molded body of I tan
Pressure and mold to bury it. The next molded body was vacuum sintered under the same conditions as described above to form a sintered body.
この従来例では、焼結体の内部、および陽極リード付近
は焼結体素面から１．０園あるのに対し、本発明実施例
による焼結体は焼結体を厚さ方向で２分割し、陽極リー
ドのまわりに間隙のある構造のため、焼結体の表面から
最も深い部分でも、０．５間となり、薬品の浸透性が向
上する利点カニある、〔発明の効果〕
以上、本発明により次の効果がある。In this conventional example, the inside of the sintered body and the vicinity of the anode lead are 1.0 mm from the bare surface of the sintered body, whereas in the sintered body according to the embodiment of the present invention, the sintered body is divided into two in the thickness direction. Since the structure has a gap around the anode lead, even the deepest part from the surface of the sintered body has a gap of 0.5 mm, which has the advantage of improving the permeability of chemicals. [Effects of the Invention] As described above, the present invention This has the following effects.
中 焼結体の間隙を通して薬品の炉結体内部への浸透性
が良くなり、薬品の含浸回数を減らすことが出来る。Medium The permeability of chemicals into the interior of the furnace body through the gaps in the sintered body is improved, and the number of times of chemical impregnation can be reduced.
（１１） コンデンサ素子の構造が、電気特性の安定
した薄型の焼結体を並列接続し文構造となるため大型の
コンデンサにおいても誘ＩＬ損失、インピーダンスＥＳ
’ｒ小さくするすこが出来る。(11) The structure of the capacitor element is a linear structure in which thin sintered bodies with stable electrical characteristics are connected in parallel, so even large capacitors have low dielectric loss and impedance ES.
'r You can make it smaller.
第１図および第２図は、本発明実施例による固体寛解コ
ンデンサ焼結体の構造を示す斜視図および陰極引き出し
層形成後のコンデンサ素子断面図。
第３図は、従来例の固体電解コンデンサ素子断面図であ
る。
１ 、１１ ａ 、 １ ｌｂ−・・・・−プレス成形
体、ＩＩＣ・・・・・・（プレス成形体の）ＩＶｌｋ部
、２，１２・・・・・・陽極リード、３，１３・・・・
・・焼結体、４，１４・・・・・・陰極引き出し／ｉ！
、５．１５・・・・・・コンデンサ素子。
５９、計、。
代理人 弁理士 内 原 晋、、０（、
リ 衣
＼ 梨1 and 2 are a perspective view showing the structure of a solid remission capacitor sintered body according to an embodiment of the present invention, and a sectional view of a capacitor element after forming a cathode extraction layer. FIG. 3 is a sectional view of a conventional solid electrolytic capacitor element. 1, 11 a, 1 lb--Press molded body, IIC...IVlk part (of the press-formed body), 2, 12... Anode lead, 3, 13...・・・
...Sintered body, 4,14...Cathode drawer/i!
, 5.15... Capacitor element. 59, total. Agent: Patent Attorney Susumu Uchihara, 0(, Ri/Nashi)
Claims (2)
対の陽極体に、一端を扁平にした陽極リードの扁平部を
介挿させた固体電解コンデンサ素子を有することを特徴
とする積層型固体電解コンデンサ。(1) A laminated solid state product characterized by having a solid electrolytic capacitor element in which a flat part of an anode lead with one end flattened is inserted between a pair of anode bodies made by molding metal powder having a valve action into chips. Electrolytic capacitor.
を形成する工程と、前記成形体の一対を、陽極リードの
扁平部を介して積層・押圧したのち、真空焼結して間隙
部を有する焼結体を形成する工程とを含むことを特徴と
する積層型固体電解コンデンサの製造方法。(2) A step of molding metal powder having a valve action to form a thin molded body, and stacking and pressing the pair of molded bodies through the flat part of the anode lead, and then vacuum sintering. 1. A method for manufacturing a multilayer solid electrolytic capacitor, the method comprising: forming a sintered body having a gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59231904A JPS61110417A (en) | 1984-11-02 | 1984-11-02 | Laminated type solid electrolytic capacitor and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59231904A JPS61110417A (en) | 1984-11-02 | 1984-11-02 | Laminated type solid electrolytic capacitor and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61110417A true JPS61110417A (en) | 1986-05-28 |
Family
ID=16930866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59231904A Pending JPS61110417A (en) | 1984-11-02 | 1984-11-02 | Laminated type solid electrolytic capacitor and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61110417A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019145669A (en) * | 2018-02-21 | 2019-08-29 | 株式会社トーキン | Solid electrolytic capacitor and manufacturing method thereof |
-
1984
- 1984-11-02 JP JP59231904A patent/JPS61110417A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019145669A (en) * | 2018-02-21 | 2019-08-29 | 株式会社トーキン | Solid electrolytic capacitor and manufacturing method thereof |
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