JPH04216609A - Element for solid electrolytic capacitor - Google Patents
Element for solid electrolytic capacitorInfo
- Publication number
- JPH04216609A JPH04216609A JP40302490A JP40302490A JPH04216609A JP H04216609 A JPH04216609 A JP H04216609A JP 40302490 A JP40302490 A JP 40302490A JP 40302490 A JP40302490 A JP 40302490A JP H04216609 A JPH04216609 A JP H04216609A
- Authority
- JP
- Japan
- Prior art keywords
- solid electrolytic
- tantalum
- electrolytic capacitor
- capacitor
- mixed
- 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
- 239000003990 capacitor Substances 0.000 title claims abstract description 50
- 239000007787 solid Substances 0.000 title claims abstract description 35
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims description 12
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 abstract description 32
- 229910052715 tantalum Inorganic materials 0.000 abstract description 27
- 238000000034 method Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000465 moulding Methods 0.000 abstract description 4
- 239000011347 resin Substances 0.000 abstract description 2
- 229920005989 resin Polymers 0.000 abstract description 2
- ROSDCCJGGBNDNL-UHFFFAOYSA-N [Ta].[Pb] Chemical compound [Ta].[Pb] ROSDCCJGGBNDNL-UHFFFAOYSA-N 0.000 description 3
- 239000010955 niobium Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 150000003481 tantalum Chemical class 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は固体電解コンデンサ素子
に関し、特にタンタル（Ｔａ），ニオビウム（Ｎｂ）等
の固体電解コンデンサの形状寸法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solid electrolytic capacitor element, and more particularly to the shape and dimensions of a solid electrolytic capacitor made of tantalum (Ta), niobium (Nb), or the like.
【０００２】0002
【従来の技術】従来固体電解コンデンサ用素子は、所望
の容量を得るために同一金属で同一ＣＶ値のコンデンサ
用粉末を所望の寸法，形状にプレス成形すると同時にコ
ンデンサ用粉末と同一金属からなる固体電解コンデンサ
用素子リード線を導出させ、しかる後１０００℃〜２０
００℃で真空焼結して固体電解コンデンサ用素子として
いた。[Prior Art] Conventionally, elements for solid electrolytic capacitors are produced by press-molding capacitor powder of the same metal and the same CV value into the desired size and shape in order to obtain a desired capacitance, and at the same time forming a solid electrolytic capacitor made of the same metal as the capacitor powder. Lead out the element lead wire for the electrolytic capacitor, and then heat it at 1000°C to 20°C.
It was vacuum sintered at 00°C to form a solid electrolytic capacitor element.
【０００３】0003
【発明が解決しようとする課題】従来の固体電解コンデ
ンサ用素子は同一金属，同一ＣＶ値のコンデンサ用粉末
を使用しているため、容量や定格電圧の異なる固体電解
コンデンサ用素子の寸法，形状はまちまちである。した
がって固体電解コンデンサの組立て工程では、固体電解
コンデンサ用素子の寸法，形状が異なるたびに固体電解
コンデンサ用素子に合致した治具への取り換え及び装置
条件の変更を行なわねばならないという欠点をもってい
る。[Problem to be solved by the invention] Since conventional solid electrolytic capacitor elements use capacitor powders of the same metal and the same CV value, the dimensions and shapes of solid electrolytic capacitor elements with different capacities and rated voltages are different. It varies. Therefore, the process of assembling a solid electrolytic capacitor has the disadvantage that whenever the size or shape of the solid electrolytic capacitor element changes, the jig must be replaced with a jig that matches the solid electrolytic capacitor element and the equipment conditions must be changed.
【０００４】本発明の目的は、固体電解コンデンサ用素
子の寸法，形状を同一にすることで上記欠点を除去した
固体電解コンデンサ用素子を提供することにある。An object of the present invention is to provide a solid electrolytic capacitor element that eliminates the above-mentioned drawbacks by making the solid electrolytic capacitor elements uniform in size and shape.
【０００５】[0005]
【課題を解決するための手段】本発明は、固体電解コン
デンサ用素子をプレス成型する際に個々のＣＶ値の異な
るコンデンサ用粉末を混合した混合コンデンサ用粉末を
使用することにより容量と定格電圧の異なる固体電解コ
ンデンサ用素子でも寸法，形状を同一にすることができ
る特徴がある。[Means for Solving the Problems] The present invention uses a mixed capacitor powder in which capacitor powders having different individual CV values are mixed when press-molding a solid electrolytic capacitor element, thereby increasing the capacity and rated voltage. It has the feature that even different solid electrolytic capacitor elements can have the same size and shape.
【０００６】[0006]
【実施例】次に本発明の実施例をチップタイプモールド
樹脂外装固体電解タンタルコンデンサについて図面を参
照して説明する。図１は本発明の実施例について用いた
固体電解タンタルコンデンサのタンタル素子の外形寸法
を示し、図２は本発明のタンタル素子を電極端子用リー
ドフレームに接続した図である。Embodiments Next, embodiments of the present invention will be described with reference to the drawings regarding a chip type molded resin-clad solid electrolytic tantalum capacitor. FIG. 1 shows the external dimensions of a tantalum element of a solid electrolytic tantalum capacitor used in an embodiment of the present invention, and FIG. 2 is a diagram of the tantalum element of the present invention connected to a lead frame for electrode terminals.
【０００７】先ず最初に１０，０００ＣＶ／ｇと５，０
００ＣＶ／ｇのタンタル粉末を３：７，５：５，７：３
の割合でそれぞれ混合して３種類の混合タンタル粉末を
作った。次にこの３種類の混合タンタル粉末から、それ
ぞれ２０ｍｇずつタンタル粉末を取出し図１に示す如く
巾Ｗ：２．０ｍｍ，厚さｔ：１．０ｍｍ，長さＬ：２．
５ｍｍの形状にプレス成型し同時に直径０．３０ｍｍの
タンタルリード線２を導出させた３種類のタンタル素子
１を作った。[0007] First of all, 10,000CV/g and 5.0
00CV/g tantalum powder 3:7, 5:5, 7:3
Three types of mixed tantalum powders were made by mixing them in the following proportions. Next, take out 20 mg of tantalum powder from each of these three types of mixed tantalum powder, and as shown in FIG. 1, width W: 2.0 mm, thickness T: 1.0 mm, length L: 2.
Three types of tantalum elements 1 were made by press molding into a shape of 5 mm and simultaneously leading out a tantalum lead wire 2 having a diameter of 0.30 mm.
【０００８】次に３種類のタンタル素子１を１７００℃
で３０分間真空焼結させた後さらにこのタンタル素子１
上に公知の方法で誘電体酸化被膜，固体電解質層及び導
電性対向電極を順次形成し３５Ｖ１．０μＦ，２５Ｖ１
．５μＦ，２０Ｖ２．２μＦの３種類の固体電解タンタ
ルコンデンサを作った。しかる後、タンタル素子１から
導出したタンタルリード線２と電極端子となるリードフ
レーム３を抵抗溶接手段により接続し、タンタル素子１
は導電性接着剤４でリードフレーム３と接続した。その
後モールド樹脂で外装し、捺印，電極端子加工，検査を
行なって形状，寸法が３種類とも同一で容量，定格電圧
がそれぞれ異なるチップタイプモールド樹脂外装固体電
解タンタルコンデンサを完成させた。Next, three types of tantalum elements 1 were heated to 1700°C.
After vacuum sintering for 30 minutes, this tantalum element 1
A dielectric oxide film, a solid electrolyte layer, and a conductive counter electrode were sequentially formed on the top by a known method, and the voltage was 35V1.0 μF and 25V1.
．． Three types of solid electrolytic tantalum capacitors of 5μF and 20V 2.2μF were made. After that, the tantalum lead wire 2 led out from the tantalum element 1 and the lead frame 3 which will become the electrode terminal are connected by resistance welding means, and the tantalum element 1 is
was connected to the lead frame 3 using a conductive adhesive 4. After that, the capacitors were packaged with molded resin, stamped, electrode terminal processed, and inspected to complete three types of chip-type molded resin-clad solid electrolytic tantalum capacitors with the same shape and dimensions but different capacities and rated voltages.
【０００９】本実施例によれば３種類の容量，定格電圧
の異なるチップタイプモールド樹脂外装固体電解タンタ
ルコンデンサのタンタル素子１の形状，寸法が同一であ
るため電極接続工程で使用するタンタル素子１セット治
具が一種類ですませることができセット治具の取り換え
及び接続装置の微調整等の時間を削減することが可能と
なり生産効率を２０％向上させることができた。According to this embodiment, since the shape and dimensions of the tantalum elements 1 of the chip type molded resin-clad solid electrolytic tantalum capacitors of three types having different capacities and rated voltages are the same, one set of tantalum elements is used in the electrode connection process. Since only one type of jig is required, it is possible to reduce the time required for replacing set jigs and making fine adjustments to connecting devices, and it has been possible to improve production efficiency by 20%.
【００１０】本実施例では２種類のＣＶ値の異なるタン
タル粉末を使用した角型のタンタル素子をチップタイプ
モールド樹脂外装固体電解コンデンサに用いて説明した
がその他の形状のタンタル素子とすることも可能であり
、３種類以上のＣＶ値の異なるタンタル粉末を使うこと
もできる。また、他の弁作用を有する金属（Ｎｂ，Ａ１
等）粉末を固体電解コンデンサ用素子とした固体電解コ
ンデンサにも適用できることは勿論である。In this example, a rectangular tantalum element using two types of tantalum powder with different CV values was used in a chip type molded resin-clad solid electrolytic capacitor, but tantalum elements of other shapes can also be used. Therefore, it is also possible to use three or more types of tantalum powders having different CV values. In addition, other metals with valve action (Nb, A1
It goes without saying that the invention can also be applied to solid electrolytic capacitors using powder as an element for solid electrolytic capacitors.
【００１１】[0011]
【発明の効果】以上説明したように本発明は固体電解コ
ンデンサ用素子に同一金属のＣＶ値の異なる数種類のコ
ンデンサ用粉末を混合して使用することにより、容量、
定格電圧の異なる固体電解コンデンサの寸法，形状を同
一にすることができ、その結果固体電解コンデンサの組
立てにおける治具の交換及び装置の条件設定変更の頻度
が減少し生産効率を２０％向上させることができた。As explained above, the present invention improves the capacitance by mixing and using several types of capacitor powders of the same metal with different CV values in a solid electrolytic capacitor element.
It is possible to make the dimensions and shapes of solid electrolytic capacitors with different rated voltages the same, and as a result, the frequency of replacing jigs and changing equipment condition settings during the assembly of solid electrolytic capacitors is reduced, improving production efficiency by 20%. was completed.
【図１】本発明の一実施例を説明するための固体電解タ
ンタルコンデンサの素子の外形寸法を示す図である。FIG. 1 is a diagram showing the external dimensions of a solid electrolytic tantalum capacitor element for explaining one embodiment of the present invention.
【図２】本発明の実施例による容量が異なり寸法・形状
が同一なタンタルコンデンサ素子を電極端子用リードフ
レームに接続した状況を示す上面図である。FIG. 2 is a top view showing a situation in which tantalum capacitor elements having different capacitances and the same size and shape are connected to an electrode terminal lead frame according to an embodiment of the present invention.
１ タンタル素子 ２ タンタルリード線 ３ 電極端子用リードフレーム ４ 導電性接着剤 Ｗ タンタル素子の幅 Ｌ タンタル素子の長さ ｔ タンタル素子の厚さ 1 Tantalum element 2 Tantalum lead wire 3 Lead frame for electrode terminals 4 Conductive adhesive W Width of tantalum element L Length of tantalum element t Thickness of tantalum element
Claims (1)
プレス成型した固体電解コンデンサ用素子から素子リー
ド線を導出させ高温で焼結した固体電解コンデンサ用素
子において、前記固体電解コンデンサ用素子に同一金属
のＣＶ値（Ｃはコンデンサ用粉末１ｇ当りのコンデンサ
の容量μＦ，Ｖは化成電圧を示す）の異なる数種類のコ
ンデンサ用粉末を混合して使用することにより、所望の
容量を同一の寸法，形状で得ることを特徴とする固体電
解コンデンサ用素子。1. A solid electrolytic capacitor element in which an element lead wire is led out from a solid electrolytic capacitor element which is press-molded from a capacitor powder made of the same metal and sintered at high temperature, wherein the solid electrolytic capacitor element is made of the same metal. By mixing and using several types of capacitor powders with different CV values (C is the capacitor capacity μF per 1g of capacitor powder, V is the chemical formation voltage), the desired capacitance can be obtained with the same size and shape. A solid electrolytic capacitor element characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP40302490A JPH04216609A (en) | 1990-12-18 | 1990-12-18 | Element for solid electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP40302490A JPH04216609A (en) | 1990-12-18 | 1990-12-18 | Element for solid electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04216609A true JPH04216609A (en) | 1992-08-06 |
Family
ID=18512773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP40302490A Pending JPH04216609A (en) | 1990-12-18 | 1990-12-18 | Element for solid electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04216609A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007123629A (en) * | 2005-10-28 | 2007-05-17 | Nichicon Corp | Solid electrolytic capacitor and manufacturing method thereof |
-
1990
- 1990-12-18 JP JP40302490A patent/JPH04216609A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007123629A (en) * | 2005-10-28 | 2007-05-17 | Nichicon Corp | Solid electrolytic capacitor and manufacturing method thereof |
| JP4671350B2 (en) * | 2005-10-28 | 2011-04-13 | ニチコン株式会社 | Solid electrolytic capacitor and manufacturing method thereof |
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