JP3296727B2 - Method for manufacturing solid electrolytic capacitor - Google Patents
Method for manufacturing solid electrolytic capacitorInfo
- Publication number
- JP3296727B2 JP3296727B2 JP22117796A JP22117796A JP3296727B2 JP 3296727 B2 JP3296727 B2 JP 3296727B2 JP 22117796 A JP22117796 A JP 22117796A JP 22117796 A JP22117796 A JP 22117796A JP 3296727 B2 JP3296727 B2 JP 3296727B2
- Authority
- JP
- Japan
- Prior art keywords
- solid electrolytic
- electrolytic capacitor
- conductive polymer
- capacitor element
- chemical conversion
- 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
- 239000003990 capacitor Substances 0.000 title claims description 38
- 239000007787 solid Substances 0.000 title claims description 23
- 238000000034 method Methods 0.000 title claims description 18
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 238000006116 polymerization reaction Methods 0.000 claims description 27
- 239000000126 substance Substances 0.000 claims description 21
- 229920001940 conductive polymer Polymers 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 10
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000003792 electrolyte Substances 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 4
- 230000001590 oxidative effect Effects 0.000 claims description 4
- 239000007800 oxidant agent Substances 0.000 claims description 3
- 238000007654 immersion Methods 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 229930192474 thiophene Natural products 0.000 claims description 2
- 150000003577 thiophenes Chemical class 0.000 claims description 2
- -1 sulfonic acid compound ion Chemical class 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 description 8
- GKWLILHTTGWKLQ-UHFFFAOYSA-N 2,3-dihydrothieno[3,4-b][1,4]dioxine Chemical compound O1CCOC2=CSC=C21 GKWLILHTTGWKLQ-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007739 conversion coating Methods 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229920000414 polyfuran Polymers 0.000 description 1
- 229920000128 polypyrrole Polymers 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- PCCVSPMFGIFTHU-UHFFFAOYSA-N tetracyanoquinodimethane Chemical compound N#CC(C#N)=C1C=CC(=C(C#N)C#N)C=C1 PCCVSPMFGIFTHU-UHFFFAOYSA-N 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- JOXIMZWYDAKGHI-UHFFFAOYSA-M toluene-4-sulfonate Chemical compound CC1=CC=C(S([O-])(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-M 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/48—Conductive polymers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は小型大容量化に適し
た固体電解コンデンサに関する。The present invention relates to a solid electrolytic capacitor suitable for miniaturization and large capacity.
【０００２】[0002]
【従来の技術】電子機器のデジタル化に伴い、それに使
用されるコンデンサにも高周波領域における低ＥＳＲ
化、小型大容量化が求められるようなってきている。こ
こでＥＳＲとは、等価直列抵抗を意味する。2. Description of the Related Art With the digitization of electronic devices, capacitors used therein have low ESR in a high frequency range.
It is becoming more and more demanding for miniaturization and large capacity. Here, ESR means equivalent series resistance.
【０００３】小型、大容量、低ＥＳＲのコンデンサとし
ては、二酸化マンガン、ＴＣＮＱ錯塩等の電子伝導性固
体を電解質とした固体電解コンデンサが実用に供されて
いる。ここでＴＣＮＱとは、７，７，８，８−テトラシ
アノキノジメタンを意味する。また、ポリピロール、ポ
リチオフェン、ポリフラン、ポリアニリン等の導電性ポ
リマーを電解質とした固体電解コンデンサも注目されて
いる。As a small-sized, large-capacity, low-ESR capacitor, a solid electrolytic capacitor using an electron-conductive solid such as manganese dioxide, TCNQ complex salt or the like as an electrolyte has been put to practical use. Here, TCNQ means 7,7,8,8-tetracyanoquinodimethane. In addition, a solid electrolytic capacitor using a conductive polymer such as polypyrrole, polythiophene, polyfuran, or polyaniline as an electrolyte has been receiving attention.
【０００４】前記導電性ポリマーを固体電解コンデンサ
の陽極部材の酸化皮膜上に密着形成する手段としては、
化学重合法により第１の導電性ポリマー層を形成した
後、電解重合法により第２の導電性ポリマー層を形成す
る技術が、特公平４−７４８５３号に開示されている。Means for forming the conductive polymer in close contact with the oxide film of the anode member of the solid electrolytic capacitor include:
A technique of forming a first conductive polymer layer by a chemical polymerization method and then forming a second conductive polymer layer by an electrolytic polymerization method is disclosed in Japanese Patent Publication No. 4-74853.
【０００５】また、化学重合法によりチオフェンの誘導
体のポリマー層を形成した固体電解コンデンサが、特開
平２−１５６１１号に開示されている。A solid electrolytic capacitor in which a polymer layer of a thiophene derivative is formed by a chemical polymerization method is disclosed in Japanese Patent Application Laid-Open No. 2-15611.
【０００６】[0006]
【発明が解決しようとする課題】ここで、化学重合法に
よる導電性ポリマー層の形成は、電解重合法による導電
性ポリマー層の形成に比べて、製造装置が簡単で作業性
にも優れるという利点がある反面、化学重合法により導
電性ポリマー層を形成した固体電解コンデンサは、電解
重合法により導電性ポリマー層を形成した固体電解コン
デンサに比べて、ＥＳＲがやや大きくなるという問題が
ある。Here, the formation of the conductive polymer layer by the chemical polymerization method has the advantage that the production apparatus is simpler and the workability is excellent as compared with the formation of the conductive polymer layer by the electrolytic polymerization method. On the other hand, a solid electrolytic capacitor having a conductive polymer layer formed by a chemical polymerization method has a problem that the ESR is slightly larger than a solid electrolytic capacitor having a conductive polymer layer formed by an electrolytic polymerization method.
【０００７】本発明は、化成皮膜を形成した陽極部材を
備えるコンデンサ素子に化学重合法により導電性ポリマ
ー層を形成するに当たっての好適な条件を解明し、小
型、大容量、低ＥＳＲで生産性にも優れたの固体電解コ
ンデンサを提供するものである。[0007] The present invention clarifies suitable conditions for forming a conductive polymer layer by a chemical polymerization method on a capacitor element having an anode member on which a chemical conversion film is formed, and improves productivity with small size, large capacity, low ESR. It also provides an excellent solid electrolytic capacitor.
【０００８】[0008]
【課題を解決するための手段】本発明による固体電解コ
ンデンサの製造方法は、化成皮膜を形成した陽極部材を
備えるコンデンサ素子に、陰極電解質としての導電性ポ
リマーを含浸した固体電解コンデンサの製造方法におい
て、前記コンデンサ素子を、酸化重合により導電性ポリ
マーとなるモノマーと酸化剤とを含む溶液に浸漬した
後、温度が約３０℃〜約５０℃で湿度が約７０％以上の
高湿空気中に放置することにより、前記化成皮膜上に導
電性ポリマー層を形成する工程を備えることを特徴とす
るものである。A method of manufacturing a solid electrolytic capacitor according to the present invention is directed to a method of manufacturing a solid electrolytic capacitor in which a capacitor element having an anode member formed with a chemical conversion film is impregnated with a conductive polymer as a cathode electrolyte. After immersing the capacitor element in a solution containing a monomer that becomes a conductive polymer by oxidative polymerization and an oxidizing agent, the capacitor element is left in high humidity air having a temperature of about 30 ° C. to about 50 ° C. and a humidity of about 70% or more. A step of forming a conductive polymer layer on the chemical conversion film.
【０００９】[0009]
【発明の実施の形態】本発明の好ましい実施形態に従っ
て製造される固体電解コンデンサの断面構成を図１に示
す。この固体電解コンデンサにおいては、焼結型のコン
デンサ素子が用いられている。焼結型のコンデンサ素子
とは、アルミニウム、タンタル、ニオブ、チタン等の弁
作用金属の焼結体１に、化成処理（陽極酸化処理）を施
して化成皮膜（誘電体皮膜）２を形成したものである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a sectional configuration of a solid electrolytic capacitor manufactured according to a preferred embodiment of the present invention. In this solid electrolytic capacitor, a sintered capacitor element is used. The sintered capacitor element is formed by subjecting a sintered body 1 of a valve metal such as aluminum, tantalum, niobium, titanium or the like to a chemical conversion treatment (anodizing treatment) to form a chemical conversion coating (dielectric coating) 2. It is.
【００１０】本発明の好ましい実施形態に従った固体電
解コンデンサの製造方法においては、前記コンデンサ素
子を、酸化重合により導電性ポリマーとなる３，４−エ
チレンジオキシチオフェンのモノマーと、酸化剤兼ドー
パント材としてのパラトルエンスルホン酸鉄（III）
と、溶媒としてのイソプロピルアルコールとを重量比
１：３：４で混合した溶液（化学重合液）に浸漬した
後、温度が約３０℃〜約５０℃、湿度が約７０％以上の
高湿空気中に約３０分間放置して重合反応を進行させ、
さらに温度が約１６０℃の炉内で約５分間の乾燥熱処理
を行い、前記浸漬、重合反応促進、乾燥の工程を５回〜
６回繰り返して、前記化成皮膜上に３，４−エチレンジ
オキシチオフェンのポリマー層３を形成する。[0010] In a method for manufacturing a solid electrolytic capacitor according to a preferred embodiment of the present invention, the capacitor element includes a monomer of 3,4-ethylenedioxythiophene, which becomes a conductive polymer by oxidative polymerization, and an oxidizing agent / dopant. Iron (III) paratoluenesulfonate as a material
And a solvent (chemical polymerization solution) in which isopropyl alcohol as a solvent is mixed at a weight ratio of 1: 3: 4, and then is humid air having a temperature of about 30 ° C. to about 50 ° C. and a humidity of about 70% or more. Allow the polymerization reaction to proceed for about 30 minutes,
Further, a drying heat treatment is performed in a furnace at a temperature of about 160 ° C. for about 5 minutes, and the immersion, polymerization reaction promotion, and drying steps are performed 5 times or more.
By repeating six times, a polymer layer 3 of 3,4-ethylenedioxythiophene is formed on the chemical conversion film.
【００１１】その後、前記ポリマー層上にグラファイト
層４及び銀ペースト層５を形成し、陰極リード６及び陽
極リード７を接続し、外装樹脂層８を形成して、所望の
固体電解コンデンサが完成する。Thereafter, a graphite layer 4 and a silver paste layer 5 are formed on the polymer layer, a cathode lead 6 and an anode lead 7 are connected, and an exterior resin layer 8 is formed to complete a desired solid electrolytic capacitor. .
【００１２】ここで、上記製法における一部の工程の条
件を表１のＡ欄に示すように少しずつ変えて試作した各
種固体電解コンデンサ、すなわち、前記重合反応促進工
程における環境温度を４０℃、湿度を７０％とした実施
例１、前記重合反応促進工程における環境温度を４０
℃、湿度を９０％とした実施例２、前記重合反応促進工
程における環境温度及び／又は湿度を変えた比較例１〜
６、前記化学重合液に純水を添加した比較例７〜９、前
記重合反応促進処理を省略した比較例１０の固体電解コ
ンデンサについて、電気特性を測定した。その結果を表
１のＢ欄に示す。Ｂ欄において、Ｃは周波数１２０Ｈｚ
で測定した静電容量、ｔａｎδは周波数１２０Ｈｚで測
定した損失角の正接、ＥＳＲは周波数１００ｋＨｚで測
定した等価直列抵抗を示している。[0012] Here, various solid electrolytic capacitors prototyped by slightly changing the conditions of some steps in the above-mentioned production method as shown in column A of Table 1, that is, the environmental temperature in the polymerization reaction accelerating step was 40 ° C, Example 1 in which the humidity was 70%, and the environmental temperature in the polymerization reaction accelerating step was 40
Example 2 in which the temperature and the humidity were 90% and Comparative Examples 1 and 2 in which the environmental temperature and / or humidity in the polymerization reaction promoting step were changed.
6. The electrical characteristics of the solid electrolytic capacitors of Comparative Examples 7 to 9 in which pure water was added to the chemical polymerization solution and Comparative Example 10 in which the polymerization reaction accelerating treatment was omitted were measured. The results are shown in column B of Table 1. In column B, C is frequency 120Hz
Tanδ is the tangent of the loss angle measured at a frequency of 120 Hz, and ESR is the equivalent series resistance measured at a frequency of 100 kHz.
【００１３】[0013]
【表１】 [Table 1]
【００１４】表１を見ればわかるように、実施例１、２
においては比較例１〜１０に比べてｔａｎδやＥＳＲが
小さく、良好な特性となっている。As can be seen from Table 1, Examples 1 and 2
In Comparative Examples 1 to 10, tan δ and ESR were smaller than those of Comparative Examples 1 to 10, and excellent characteristics were obtained.
【００１５】また、実施例１、２と比較例１〜６とを対
比すれば、重合反応促進工程の温度条件について、２０
℃では低すぎて６０℃では高すぎることがわかり、重合
反応促進工程の湿度条件について、５０％では低すぎる
ことがわかる。Further, when Examples 1 and 2 are compared with Comparative Examples 1 to 6, the temperature conditions in the polymerization reaction accelerating step are
It is found that the temperature is too low at 60 ° C and too high at 60 ° C, and that the humidity condition in the polymerization reaction promoting step is too low at 50%.
【００１６】さらに、実施例１、２と比較例７〜９とを
対比すれば、化学重合液そのものに水分を添加しても重
合反応促進工程における湿度が低いと良好な導電性ポリ
マー層が形成されないことがわかり、比較例６〜９を対
比すれば、化学重合液への水分の添加は、むしろ好まし
くない結果をもたらすこともわかる。Further, when Examples 1 and 2 are compared with Comparative Examples 7 to 9, a favorable conductive polymer layer is formed even when water is added to the chemical polymerization solution itself when the humidity in the polymerization reaction accelerating step is low. In comparison with Comparative Examples 6 to 9, it can be seen that the addition of water to the chemical polymerization solution gives rather undesirable results.
【００１７】なお、上記実施例においては焼結型のコン
デンサ素子を用いたが、陽極化成箔を用いた平板型ある
いは巻回型のコンデンサ素子を用いてもよい。Although a sintered capacitor element is used in the above embodiment, a flat or wound capacitor element using anodized foil may be used.
【００１８】また、前記３，４−エチレンジオキシチオ
フェンの代わりに、酸化重合により導電性ポリマーとな
るチオフェン又はその誘導体等を用いてもよい。Instead of the 3,4-ethylenedioxythiophene, thiophene or a derivative thereof which becomes a conductive polymer by oxidative polymerization may be used.
【００１９】[0019]
【発明の効果】本発明によれば、化成皮膜を形成した陽
極部材を備えるコンデンサ素子に化学重合法のみにより
導電性ポリマー層を形成しても、ｔａｎδ、ＥＳＲ等の
点で良好な特性を有する固体電解コンデンサが提供され
る。According to the present invention, even if a conductive polymer layer is formed only by a chemical polymerization method on a capacitor element having an anode member on which a chemical conversion film is formed, good characteristics are obtained in terms of tan δ, ESR, etc. A solid electrolytic capacitor is provided.
【００２０】また、電解重合法を併用する場合に比べ
て、生産設備が簡略化されると共に作業工数も低減す
る。Further, as compared with the case where the electrolytic polymerization method is used in combination, the production equipment is simplified and the number of working steps is reduced.
【図１】本発明実施例による固体電解コンデンサの断面
図である。FIG. 1 is a sectional view of a solid electrolytic capacitor according to an embodiment of the present invention.
１ 陽極焼結体 ２ 化成皮膜 ３ 導電性ポリマー層 ４ グラファイト層 ５ 銀ペースト層 ６ 陰極リード ７ 陽極リード ８ 外装樹脂層 Reference Signs List 1 anode sintered body 2 chemical conversion film 3 conductive polymer layer 4 graphite layer 5 silver paste layer 6 cathode lead 7 anode lead 8 exterior resin layer
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) H01G 9/02 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) H01G 9/02
Claims (4)
ンデンサ素子に、陰極電解質としての導電性ポリマーを
含浸した固体電解コンデンサの製造方法において、前記
コンデンサ素子を、酸化重合により導電性ポリマーとな
るモノマーと酸化剤とを含む溶液に浸漬した後、温度が
約３０℃〜約５０℃で湿度が約７０％以上の高湿空気中
に放置することにより、前記化成皮膜上に導電性ポリマ
ー層を形成する工程を備えることを特徴とする固体電解
コンデンサの製造方法。1. A method for manufacturing a solid electrolytic capacitor in which a capacitor element having an anode member on which a chemical conversion film is formed is impregnated with a conductive polymer as a cathode electrolyte, wherein the capacitor element is converted into a monomer which becomes a conductive polymer by oxidative polymerization. Forming a conductive polymer layer on the chemical conversion film by immersing in a high humidity air having a temperature of about 30 ° C. to about 50 ° C. and a humidity of about 70% or more after immersion in a solution containing A method for manufacturing a solid electrolytic capacitor, comprising:
オフェンの誘導体を用いることを特徴とする請求項１記
載の固体電解コンデンサの製造方法。2. The method according to claim 1, wherein thiophene or a thiophene derivative is used as the monomer.
イオンを含む塩を用いることを特徴とする請求項２記載
の固体電解コンデンサの製造方法。3. The method according to claim 2, wherein a salt containing a sulfonic acid compound ion is used as the oxidizing agent.
の焼結体に化成皮膜を形成したコンデンサ素子を用いる
ことを特徴とする請求項３記載の固体電解コンデンサの
製造方法。4. The method for manufacturing a solid electrolytic capacitor according to claim 3, wherein a capacitor element having a chemical conversion film formed on a sintered body of a valve metal is used as said capacitor element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22117796A JP3296727B2 (en) | 1996-08-22 | 1996-08-22 | Method for manufacturing solid electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22117796A JP3296727B2 (en) | 1996-08-22 | 1996-08-22 | Method for manufacturing solid electrolytic capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1064761A JPH1064761A (en) | 1998-03-06 |
| JP3296727B2 true JP3296727B2 (en) | 2002-07-02 |
Family
ID=16762691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22117796A Expired - Fee Related JP3296727B2 (en) | 1996-08-22 | 1996-08-22 | Method for manufacturing solid electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3296727B2 (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10340831A (en) * | 1997-06-06 | 1998-12-22 | Nippon Chemicon Corp | Manufacture of solid electrolytic capacitor |
| JP2000068152A (en) * | 1998-08-19 | 2000-03-03 | Nichicon Corp | Solid electrolytic capacitor and manufacture therefor |
| CN1186789C (en) * | 1999-02-18 | 2005-01-26 | 昭和电工株式会社 | Solid electrolytic capacitor and its production method |
| TW502266B (en) * | 1999-04-06 | 2002-09-11 | Showa Denko Kk | Solid electrolytic capacitor and method for producing the same |
| US6517892B1 (en) | 1999-05-24 | 2003-02-11 | Showa Denko K.K. | Solid electrolytic capacitor and method for producing the same |
| JP4655339B2 (en) * | 2000-07-07 | 2011-03-23 | 株式会社村田製作所 | Solid electrolytic capacitor element and manufacturing method thereof |
| JP4642257B2 (en) * | 2001-03-09 | 2011-03-02 | 日本ケミコン株式会社 | Solid electrolytic capacitor |
| US7005445B2 (en) | 2001-10-22 | 2006-02-28 | The Research Foundation Of State University Of New York | Protein kinase and phosphatase inhibitors and methods for designing them |
| JP4166112B2 (en) | 2003-04-09 | 2008-10-15 | 三洋電機株式会社 | Solid electrolytic capacitor and method of attaching solid electrolytic capacitor |
| CN100335529C (en) | 2003-05-22 | 2007-09-05 | 松下电器产业株式会社 | Method and apparatus for producing conductive polymer |
| DE102004022110A1 (en) * | 2004-05-05 | 2005-12-01 | H.C. Starck Gmbh | Process for the preparation of electrolytic capacitors |
| US7106575B2 (en) | 2004-08-26 | 2006-09-12 | Sanyo Electric Co., Ltd. | Solid electrolytic capacitor |
| JP4583132B2 (en) | 2004-10-08 | 2010-11-17 | 三洋電機株式会社 | Solid electrolytic capacitor |
| US7808773B2 (en) | 2005-02-04 | 2010-10-05 | Sanyo Electric Co., Ltd. | Electronic part and process for producing the same |
| JP2006286939A (en) | 2005-03-31 | 2006-10-19 | Sanyo Electric Co Ltd | Solid-state electrolytic capacitor and method of manufacturing the same |
| JP4688583B2 (en) | 2005-06-20 | 2011-05-25 | 三洋電機株式会社 | Solid electrolytic capacitor and manufacturing method thereof |
| KR100784922B1 (en) | 2006-03-24 | 2007-12-11 | 주식회사 에너솔 | Method for manufacturing winding type electrolytic condenser using conductive polymer |
| JP4891140B2 (en) * | 2007-04-20 | 2012-03-07 | ニチコン株式会社 | Manufacturing method of solid electrolytic capacitor |
-
1996
- 1996-08-22 JP JP22117796A patent/JP3296727B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1064761A (en) | 1998-03-06 |
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