WO2004010446A1 - 固体電解コンデンサにおけるコンデンサ素子及びこのコンデンサ素子の製造方法並びにこのコンデンサ素子を用いた固体電解コンデンサ - Google Patents
固体電解コンデンサにおけるコンデンサ素子及びこのコンデンサ素子の製造方法並びにこのコンデンサ素子を用いた固体電解コンデンサ Download PDFInfo
- Publication number
- WO2004010446A1 WO2004010446A1 PCT/JP2003/009212 JP0309212W WO2004010446A1 WO 2004010446 A1 WO2004010446 A1 WO 2004010446A1 JP 0309212 W JP0309212 W JP 0309212W WO 2004010446 A1 WO2004010446 A1 WO 2004010446A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- anode
- tip body
- solid electrolyte
- capacitor element
- cathode
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 76
- 239000007787 solid Substances 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 238000000034 method Methods 0.000 title claims description 6
- 239000007784 solid electrolyte Substances 0.000 claims abstract description 55
- 229910052751 metal Inorganic materials 0.000 claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 28
- 239000000843 powder Substances 0.000 claims abstract description 15
- 238000005245 sintering Methods 0.000 claims abstract description 7
- 238000010304 firing Methods 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims description 2
- 230000002950 deficient Effects 0.000 abstract description 3
- 208000016261 weight loss Diseases 0.000 abstract 1
- 239000013585 weight reducing agent Substances 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 description 21
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 6
- 229910052709 silver Inorganic materials 0.000 description 6
- 239000004332 silver Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 229910052715 tantalum Inorganic materials 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 description 2
- 239000002923 metal particle Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000465 moulding Methods 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
- 239000006104 solid solution Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000003466 welding Methods 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
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/15—Solid electrolytic capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/0029—Processes of manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/042—Electrodes or formation of dielectric layers thereon characterised by the material
Definitions
- the present invention relates to solid electrolytic using valve action metal such as tantalum, niobium or aluminum.
- the present invention relates to a capacitor element used for the capacitor, a method of manufacturing the capacitor element, and a solid electrolytic capacitor using the capacitor element.
- valve metal powder such as tantalum is applied to a porous rectangular anode tip body 2 from one end face 2a of the anode tip body 2 by an anode wire made of valve action metal. Sintered after compacting and molding so that 3 protrudes.
- the anode tip body 2 is immersed in a chemical solution such as a phosphoric acid aqueous solution, and an anodic oxidation treatment of applying a direct current in this state is performed, whereby each of the anode tip bodies 2 A dielectric film such as tantalum pentoxide is formed on the surface of the metal particles.
- a chemical solution such as a phosphoric acid aqueous solution
- the anode tip body 2 is immersed in an aqueous solution A for a solid electrolyte such as a manganese nitrate aqueous solution with the anode wire 3 facing upward, as shown in FIG.
- the solid electrolyte aqueous solution A penetrates into the porous tissue of the anode tip body 2.
- the process of withdrawing the anode tip body 2 from the aqueous solution for solid electrolyte A, drying and firing is repeated several times.
- a solid electrolyte layer 4 made of a metal oxide such as manganese dioxide is formed on the surface of the anode tip body 2 so as to overlap the dielectric film.
- a graphite layer is formed on the surface of the anode tip body 2 excluding the one end surface 2a. 5.
- the anode tip body 2 is similarly immersed in a metal paste such as silver with the anode wire 3 facing upward, then pulled up and fired.
- a metal paste such as silver with the anode wire 3 facing upward, then pulled up and fired.
- the cathode-side electrode film 5 made of the metal paste is formed on the surface of the anode tip body 2 except for the one end surface 2a.
- capacitor element 1 is manufactured.
- a solid electrolyte layer 4 made of a metal oxide such as manganese dioxide on the anode tip body 2 by superposing it on a dielectric film
- the anode tip body 2 was pulled out of the aqueous solution A for solid electrolyte.
- an excess aqueous solution for solid electrolyte drips from the other end face 2 b at the lower end of the anode chip 2.
- the end face 2b has a concave shape at the central portion.
- the portion of the solid electrolyte layer 4 on the other end surface 2b of the anode tip body 1 has a configuration in which the entire periphery of the bulge 4 'is surrounded by a rib. Therefore, following the above step, the anode tip body 2 is formed with a graphite layer thereon, and then immersed in a metal paste such as silver with the anode wire 3 facing upward, pulled up, and fired. Thereby, as shown in FIG. 4, in the step of forming the cathode-side electrode film 5, when the anode tip body 2 is immersed in a metal paste, the other end face 2b of the solid electrolyte layer 4 is formed. The air in the recessed portion cannot escape. Then, as shown in FIG.
- the cathode-side electrode film 5 when the cathode-side electrode film 5 is formed so as to overlap the solid electrolyte layer 4, the cathode-side electrode film 5 also has the four corner sides 2c ', 2d', 2e ', and 2f'. At the location, the solid electrolyte layer 4 overlaps with a portion that rises to the outward nodule 4 ′ and rises to an outward nodule 5 ′.
- the solid electrolyte layer 4 and the cathode-side electrode film 5 of the capacitor element 1 are formed by all four corner sides 2 c ′, 2 d ′, and 2 e ′ surrounding the other end face 2 b of the anode chip body 2. , 2 f ′, the shape of the bulge rises to outward nodules 4 ′, 5 ′. Then, the capacitor element 1 is connected to the anode lead terminal and the cathode lead terminal, the anode wire 3 is fixed to the anode lead terminal, and the cathode electrode film 5 is connected to the cathode lead terminal.
- both the height dimension and the width dimension of the package body are as described above.
- Outer bumps 4 ′, 5 ′ at all four corner sides 2 c ′, 2 d ′, 2 e ′, 2 f ′ surrounding the other end face 2 b of the anode tip body 2 there was a problem that the size and the weight were increased.
- the present invention provides a capacitor element capable of solving these problems without causing a decrease in the capacitance of the capacitor, a method for manufacturing the same, and a solid electrolytic capacitor using the capacitor element. Is a technical issue.
- a capacitor element according to the present invention comprises: an anode tip body obtained by sintering a valve metal powder into a porous rectangular parallelepiped; an anode wire fixed to an end face of the anode tip body; A dielectric film formed on the surface of the metal powder in the chip body; a solid electrolyte layer formed on the dielectric film; and a cathode electrode formed on the surface of the anode chip body on the solid electrolyte.
- a capacitor element comprising a film, wherein at least two of the four corner sides where the four side surfaces of the anode chip rest intersect with the other end surface opposite to the one end surface are parallel to each other. The corner sides are rounded or chamfered.
- the method of manufacturing a capacitor element according to the present invention is characterized in that the capacitor element is sintered into a porous rectangular parallelepiped made of valve metal powder.
- the anode tip body having the anode wire fixed to one end face is connected to at least one of four corner sides where four side faces of the anode tip body and the other end face opposite to the one end face intersect.
- the solid electrolytic capacitor according to the present invention further includes an anode tip body obtained by sintering a valve metal powder into a porous rectangular parallelepiped; an anode wire fixed to one end surface of the anode tip body; A dielectric film formed on the surface of the metal powder; a solid electrolyte layer formed on the dielectric film; and a cathode-side electrode film formed on the surface of the anode tip body on the solid electrolyte.
- a capacitor element is disposed between the anode-side lead terminal plate and the cathode-side lead terminal plate, and an anode wire of the capacitor element is fixed to the anode-side lead terminal plate, while the capacitor element is fixed.
- the four side surfaces of the anode chip body and At least one another flat rows of two corner edges of the four corner edges one end face and the opposite other end face intersect is whether it is a round chamfer, and the FEATURE: that it is the chamfered surface.
- the solid electrolyte layer to be formed can surely be prevented from rising in the shape of an outward nodule at the two corner sides that are rounded or chamfered.
- the reason that the solid electrolyte layer formed on the anode tip body bulges outward at the other end face of the anode tip body is that two parallel sides of the four corner sides surrounding the entire periphery of the other end face. Limited to only one corner. Accordingly, it is possible to prevent the entire solid electrolyte layer from being surrounded by a portion protruding in an outwardly convex shape around the entire other end portion of the anode tip body. According to this, when forming the cathode-side electrode film on the anode chip body by immersing in a metal base such as silver and pulling it up after the step of forming a solid electrolyte layer, Air at the other end of the tip body escapes easily.
- the fact that the solid electrolyte layer and the cathode-side electrode film formed on the anode tip body are raised outwardly on the other end face of the anode tip body in the shape of an outwardly convex bump is defined by a circle among the four corner sides surrounding the entire circumference of the other end face. It can be limited to only corners other than at least two corners that are corners or chamfers.
- one of the height dimension or the width dimension of the packaged solid electrolytic capacitor is The solid electrolyte layer and the cathode-side electrode film bulge outwardly at the round corners or at least two corners of the chamfered surface out of the four corners surrounding the other end surface of the anode chip body.
- the solid electrolytic capacitor can be made smaller and lighter because there is no space.
- FIG. 1 is a perspective view showing an anode chip body used for a conventional capacitor element.
- FIG. 2 is a vertical sectional front view showing a state in which a solid electrolyte layer is formed on the conventional anode tip body.
- FIG. 3 is a cross-sectional view taken along the line II-II of FIG.
- FIG. 4 is a vertical sectional front view showing a conventional capacitor element.
- FIG. 5 is a perspective view showing an anode chip body used for the capacitor element of the present invention.
- FIG. 6 is a sectional view taken along line VI-VI of FIG.
- FIG. 7 is a sectional view taken along the line VII-VII of FIG.
- FIG. 8 is a perspective view showing another anode chip body used for the capacitor element of the present invention.
- FIG. 9 is a longitudinal sectional front view showing a state in which a solid electrolyte layer is formed on the anode tip body according to the present invention.
- FIG. 10 is a sectional view taken along line XX of FIG.
- FIG. 11 is a vertical sectional front view showing a capacitor element according to the present invention.
- FIG. 12 is a sectional view taken along the line XI I-XI I of FIG.
- FIG. 13 is a vertical sectional front view of a solid electrolytic capacitor using the capacitor element according to the present invention.
- FIG. 14 is a sectional view taken along the line XIV-XIV of FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
- Fig. 5 shows a porous anode tip body 12 formed by solidifying a tantalum powder into a rectangular shape and then sintering.
- the anode tip 12 has a tantalum anode wire 13 attached to it. It is fixed so as to protrude from one end face 11 a of the body 12.
- the cross section of the anode tip body 12 perpendicular to the anode wire 13 is a rectangle having a long dimension D 1 as one side and a short dimension D 2 as the other side, and a height dimension thereof. Is L.
- two of the four side surfaces 12 c, 12 d, 12 e, and 12 f of the anode tip body 12 which are parallel to each other and have a large area are used.
- the anode tip body 12 is immersed in a chemical conversion solution such as a phosphoric acid aqueous solution, and an anodic oxidation treatment of applying a direct current in this state is performed in the same manner as in the related art.
- a dielectric film such as tantalum pentoxide is formed on the surface of each metal particle.
- the anode tip body 12 is immersed in a solid electrolyte aqueous solution such as a manganese nitrate aqueous solution with the anode wire 13 facing upward, as in the case of FIG.
- a solid electrolyte aqueous solution such as a manganese nitrate aqueous solution with the anode wire 13 facing upward, as in the case of FIG.
- the solid solution is withdrawn from the aqueous solution for solid electrolyte, dried, and fired a plurality of times.
- a solid electrolyte layer 14 made of a metal oxide such as manganese dioxide is formed on the surface of the anode tip body 12 so as to overlap the dielectric film.
- the solid electrolyte layer 14 is superposed on the dielectric film with respect to the anode chip body 12.
- the aqueous solution for solid electrolyte dripping from the other end surface 12 b of the lower end of the anode tip body 12 collects in the form of water droplets.
- the four side surfaces 1 2 c, 12 d, 12 e, and 12 f of the anode tip body 1 2 are parallel to each other and the two side surfaces 1 2 d and 12 f are the other end surfaces 1 2 d and 12 f respectively.
- Two edges intersecting with 1 b are limited to two corner edges 1 2 i and 1 2 j. Therefore, it is possible to prevent the aqueous solution for the electrolyte from collecting in the form of water drops at the two chamfered surfaces 12 g and 12 h or the rounded corners 12 g ′ and 12 h ′.
- the solid electrolyte layer 14 swells outwardly on the other end surface 12 b of the anode tip body 12 into a bump-like shape 14 ′.
- the four corners surrounding the entire periphery of the other end face 11b are not formed on the chamfered faces 12g, 12h or the rounded faces 12g ', 12h'. It is limited to only one corner side 1 2 i, 1 1 j.
- the solid electrolyte layer 14 has a configuration in which the entire periphery of the portion at the other end surface ⁇ 2 b of the anode tip body 12 is surrounded by a portion that protrudes into an outwardly convex shape 14 ′. Then, after the anode tip body 2 is formed with a graphite layer as a base on the surface thereof, the anode wire 13 is also oriented upward in a metal paste of silver or the like. After being immersed in, it is pulled up and baked. Then, as shown in FIGS. 11 and 12, a cathode-side electrode film 15 made of the metal base is formed on the surface of the anode tip body 12 except for the one end face 12 a. , The capacitor element 11 is selected.
- the cathode-side electrode film 15 formed here is overlapped with a portion of the solid electrolyte layer 14 where the other end surface 1 2b of the anode chip body 12 rises in an outwardly convex shape 14 ′.
- the two chamfered surfaces 12g, 12h or the rounded square surface 1 At the locations of 2 g ′ and ⁇ 2 h ′, the cathode-side electrode film 15 can be prevented from rising in the shape of an outward bump.
- the capacitor element 11 manufactured in this manner is assembled into a package-type solid electrolytic capacitor 100 as described below.
- the capacitor element 11 is disposed between a pair of left and right lead terminal plates 16 and 17, and each side surface 12 c of the anode chip body 12. , 12 d, 12 e, and 12 f, the two side surfaces 12 c, 12 e having a large area which are parallel to each other are parallel or substantially parallel to the surfaces of the lead terminal plates 16, 17. It is arranged.
- the anode wire 13 of the capacitor element 11 is fixed to one of the anode lead terminal boards 16 of the lead terminal boards 16 and 17 by welding or the like.
- the other cathode-side lead terminal 17 is superimposed on the cathode-side electrode film 15 in 1 and electrically connected directly with a conductive paste 18 or the like. Then, the whole is sealed with a synthetic resin package 19 to assemble it into a package type solid electrolytic capacitor 100.
- an outwardly protruding bulge is formed on the other end face 12 b of the anode chip body 12.
- the portions that rise up to 14 'and 15' are the two upper and lower sides of the sides 12c, 12d, 12e, and 12f of the anode tip body 12. c, 1 2 e Not protruding.
- the portion of the package-type solid electrolytic capacitor 100 that has the height H in the outwardly bumped shape 14 ′, 15 ′ does not protrude from the two side surfaces ⁇ 2 c, 12 e. It is possible to reduce the size and weight of the product.
- the outwardly protruding nodules 14 ', 15' do not protrude from the two side surfaces 12c, 12e, the outwardly protruding nodules 14 ', 15 It is possible to avoid that the swelling portion contacts the cathode-side lead terminal plate 17. Therefore, when assembling into a solid electrolytic capacitor, it is possible to reduce the occurrence of defects such as chipping at the portions protruding in the outwardly convex bumps 14 ′ and 15 ′, and Electrical connection of the cathode-side lead terminal plate 17 to the cathode-side electrode film 15 can be made reliably and easily.
- the capacitor element 11 When assembling into a solid electrolytic capacitor, the capacitor element 11 is connected to the other end face 11 b of each side face 12 c, 12 d, 12 e, 12 f of the anode chip body 12.
- 1 2 g, 12 h or two side surfaces 1 2 d, 1 2 f that are not formed on the rounded corners 1 2 g ′, 1 2 h ′ are on both corners of the lead terminal plate 16, 1
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003281563A AU2003281563A1 (en) | 2002-07-24 | 2003-07-18 | Capacitor element for solid electrolytic capacitor, method for manufacturing such capacitor element and solid electrolytic capacitor using such capacitor element |
US10/521,918 US7190572B2 (en) | 2002-07-24 | 2003-07-18 | Capacitor element of solid electrolytic capacitor, method of making the capacitor element, and solid electrolytic capacitor using the capacitor element |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002214944A JP3980434B2 (ja) | 2002-07-24 | 2002-07-24 | 固体電解コンデンサにおけるコンデンサ素子及びこのコンデンサ素子の製造方法並びにこのコンデンサ素子を用いた固体電解コンデンサ |
JP2002-214944 | 2002-07-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004010446A1 true WO2004010446A1 (ja) | 2004-01-29 |
Family
ID=30767901
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/009212 WO2004010446A1 (ja) | 2002-07-24 | 2003-07-18 | 固体電解コンデンサにおけるコンデンサ素子及びこのコンデンサ素子の製造方法並びにこのコンデンサ素子を用いた固体電解コンデンサ |
Country Status (5)
Country | Link |
---|---|
US (1) | US7190572B2 (ja) |
JP (1) | JP3980434B2 (ja) |
CN (1) | CN100521011C (ja) |
AU (1) | AU2003281563A1 (ja) |
WO (1) | WO2004010446A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220415581A1 (en) * | 2019-12-24 | 2022-12-29 | Panasonic Intellectual Property Management Co., Ltd. | Electrolytic capacitor and method for producing same |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8491392B2 (en) * | 2006-10-24 | 2013-07-23 | Igt | Gaming system and method having promotions based on player selected gaming environment preferences |
US8057883B2 (en) * | 2007-05-30 | 2011-11-15 | Kemet Electronics Corporation | Abrasive process for modifying corners, edges, and surfaces of capacitor anode bodies |
US7658986B2 (en) | 2007-05-30 | 2010-02-09 | Kemet Electronics Corporation | Anodes with corner and edge modified designs |
JP5362432B2 (ja) * | 2009-04-27 | 2013-12-11 | 三洋電機株式会社 | 固体電解コンデンサ及びその製造方法 |
JP2012191178A (ja) * | 2011-02-22 | 2012-10-04 | Sanyo Electric Co Ltd | 電解コンデンサおよび電解コンデンサの製造方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000348985A (ja) * | 1999-06-09 | 2000-12-15 | Sanyo Electric Co Ltd | 固体電解コンデンサの陽極体、並びに該陽極体を用いた固体電解コンデンサ及びその製造方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5483415A (en) * | 1993-02-26 | 1996-01-09 | Rohm Co., Ltd. | Solid electrolytic capacitor and method of making the same |
JP3150244B2 (ja) * | 1993-07-09 | 2001-03-26 | ローム株式会社 | 固体電解コンデンサにおけるコンデンサ素子の構造 |
JPH0766079A (ja) | 1993-08-25 | 1995-03-10 | Rohm Co Ltd | 固体電解コンデンサにおけるコンデンサ素子の製造方法 |
JPH10106898A (ja) * | 1996-09-27 | 1998-04-24 | Rohm Co Ltd | 固体電解コンデンサに使用するコンデンサ素子の構造及びコンデンサ素子におけるチップ体の固め成形方法 |
EP1100097B1 (en) * | 1998-06-25 | 2008-08-06 | Nichicon Corporation | Process for producing a solid electrolytic capacitor |
-
2002
- 2002-07-24 JP JP2002214944A patent/JP3980434B2/ja not_active Expired - Lifetime
-
2003
- 2003-07-18 WO PCT/JP2003/009212 patent/WO2004010446A1/ja active Application Filing
- 2003-07-18 AU AU2003281563A patent/AU2003281563A1/en not_active Abandoned
- 2003-07-18 CN CNB038106159A patent/CN100521011C/zh not_active Expired - Fee Related
- 2003-07-18 US US10/521,918 patent/US7190572B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000348985A (ja) * | 1999-06-09 | 2000-12-15 | Sanyo Electric Co Ltd | 固体電解コンデンサの陽極体、並びに該陽極体を用いた固体電解コンデンサ及びその製造方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220415581A1 (en) * | 2019-12-24 | 2022-12-29 | Panasonic Intellectual Property Management Co., Ltd. | Electrolytic capacitor and method for producing same |
Also Published As
Publication number | Publication date |
---|---|
JP2004056040A (ja) | 2004-02-19 |
CN1653567A (zh) | 2005-08-10 |
US20050231895A1 (en) | 2005-10-20 |
CN100521011C (zh) | 2009-07-29 |
US7190572B2 (en) | 2007-03-13 |
JP3980434B2 (ja) | 2007-09-26 |
AU2003281563A1 (en) | 2004-02-09 |
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