CN101329951B - High-frequency nonpolarity solid tantalum electrolytic capacitor with lead wire and manufacturing method thereof - Google Patents
High-frequency nonpolarity solid tantalum electrolytic capacitor with lead wire and manufacturing method thereof Download PDFInfo
- Publication number
- CN101329951B CN101329951B CN2008100444435A CN200810044443A CN101329951B CN 101329951 B CN101329951 B CN 101329951B CN 2008100444435 A CN2008100444435 A CN 2008100444435A CN 200810044443 A CN200810044443 A CN 200810044443A CN 101329951 B CN101329951 B CN 101329951B
- Authority
- CN
- China
- Prior art keywords
- tantalum
- electrolytic capacitor
- lead
- lead wire
- wire
- 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
Images
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Fuses (AREA)
Abstract
The invention discloses a high frequency nonpolarity solid tantalum electrolytic capacitor provided with a lead wire, which relates to the technical field of solid electrolytic capacitor. The basic structure of the electrolytic capacitor of the invention comprises an insulation shell (2), tantalum cores (1), a lead wire (4), a package layer of epoxy resin (3); wherein, adhesive silver slurry is used for firmly bonding two pieces of super thin tantalum cores (1) in series; then tantalum wires (6) on the two tantalum cores are respectively spot-welded on the lead wire; the tantalum cores spot-welded on the lead wire are put in the shell (2), and liquid epoxy resin is used for filling the gap within the shell until the shell is completely filled. The nonpolarity solid tantalum electrolytic capacitor with the lead wire of the invention has the advantages of good high-frequency performance, light weight, small installation size, convenient and firm installation, saving installation space, reducing weight, thereby being capable of widely applied to various electronic circuits.
Description
Technical field
The present invention relates to a kind of solid electrolytic capacitor, relate in particular to the leaded solid electrolytic capacitor of a kind of high-frequency pole-free; The invention still further relates to the preparation method of this solid electrolytic capacitor.
Background technology
Along with electronic message unit constantly develops to digitlization, systolize direction, the solid electrolyte Ta capacitor that requires present metallic packaging is to nonpolarity development, to satisfy the needs of equipment such as Aeronautics and Astronautics, communication.
The basic structure of existing nonpolarity leaded solid electrolytic capacitor comprises insulation crust 2, two tantalum fuses 1, lead-out wire 4, described tantalum fuse is 1 cylindrical, its outer surface is coated with cathode layer, each tantalum fuse 1 links to each other with lead-out wire 4 respectively by the tantalum wire 6 of its upper end, tantalum fuse cathode layer is connected by encapsulated layer 3 with insulation crust 2, by metallic insulator 7 sealings.Because the cylinder tantalum fuse that existing nonpolarity leaded solid electrolytic capacitor product employing diameter is 5～6.5mm is an anode, makes that small product size is big, surface area is little, high frequency characteristics is poor; The encapsulated layer of existing product is a metallic tin, and product weight is heavy, and that gives product has fixedly brought great difficulty; Because the lead-out wire of product is the circular nickel wire of diameter 0.6mm, often adopt soft fixing, and then fix with silicon rubber, when product is applied to do the equipment of satellite, guided missile or aircraft of high-speed motion, because product installs and fixes not firm, the shearing force that produces because of resonance is big, causes the product wire breaking easily.Because there is above problem in existing nonpolarity leaded electrolytic capacitor, has influence on the scope of application of this product in electronic circuit.
Summary of the invention
The objective of the invention is to overcome the above-mentioned problems in the prior art, the high-frequency nonpolarity solid tantalum electrolytic capacitor with lead wire that a kind of physical dimension is little, in light weight, high frequency characteristics is good, easy for installation, firm is provided.
Another object of the present invention provides a kind of manufacture method of above-mentioned nonpolarity solid tantalum electrolytic capacitor with lead wire.
In order to achieve the above object, the present invention has adopted following technical scheme: a kind of high-frequency nonpolarity solid tantalum electrolytic capacitor with lead wire, comprise insulation crust 2, two tantalum fuses 1, two lead-out wires 4, described tantalum fuse 1 is fixed in the shell 2 by encapsulated layer 3, the outer surface of tantalum fuse 1 is coated with cathode layer, each tantalum fuse links to each other with lead-out wire 4 respectively by the tantalum wire 6 of its upper end, it is characterized in that described tantalum fuse 1 is cuboid, two outer cathode layers of tantalum fuse are in series by silver slurry layer 5, are fixed in the insulation crust 2 by encapsulated layer 3.
The thickness of described tantalum fuse 1 is 1～2mm.
Described lead-out wire 4 is flat sheet-like.
Described tantalum wire 6 and lead-out wire 4 link to each other by spot welding.
Described encapsulated layer 3 is a liquid epoxies, formulated in proportion by epoxy resin, the amine that contracts, dibutyl phthalate (DBP), gas-phase silica, silicon dioxide, the proportion of described composition is: epoxy resin 50%～80%, the amine 5%～24% that contracts, dibutyl phthalate (DBP) 5%～10%, gas-phase silica 1%～6%, silica 1 %～20%.
Described shell 2 is metal or insulants such as epoxy resin or plastics.
The preparation method of high-frequency nonpolarity solid tantalum electrolytic capacitor with lead wire of the present invention is characterized in that may further comprise the steps:
1. in the tantalum powder, add percentage by weight and be 4% binding agent, be pressed into cuboid by required specification behind the mixing, the tantalum piece of compression moulding is placed crucible, at 1000～2050 ℃, vacuum pressure 3～10 * 10
-3Sintering, passivation 30min under the condition of Pa, remove binding agent, with remove tantalum piece behind the binding agent immerse fill that concentration is 0.6%, temperature is in 65 ℃ the phosphoric acid solution, it is connected with positive source, solution is connected with power cathode simultaneously, and energized makes the tantalum piece boost to setting voltage under constant current density, under this voltage, keep 2h, the tantalum piece is made as the tantalum fuse that has tantalum wire;
2. the tantalum fuse is immersed in the manganese nitrate solution that proportion is 1.1～1.46g/cc, heating is decomposed manganese nitrate under 230 ± 5 ℃ vapour atmosphere, repeats this process, and the cathode layer of finishing the tantalum fuse coats;
3. on the cathode plane of tantalum fuse, coat conductive adhesive silver slurry, make parallel the bonding together of negative electrode of two tantalum fuses: the tantalum fuse behind the tunicle was flooded 1～6 minute in the aquadag breast solution of pH value 9～13,2～6%, dry 30～50min down at 150 ℃, be dipping in 45～65% the silver slurry at silver content then, dipping highly is 65～90% of a product, dry 50～120min down at 150～165 ℃ after in air, shelving 10～30min, it is bonding that two tantalum fuses are carried out the side by bonding silver slurry, solidifies 15～60min down at 120 ℃～280 ℃ then;
4. be welded on the lead-out wire with the tantalum wire of spot welding machine the tantalum fuse;
5. point is welded the shell that the tantalum fuse of drawing lead-in wire is put into regulation, fill fixing with liquid epoxies.
Compared with prior art, the invention has the beneficial effects as follows: high-frequency nonpolarity solid tantalum electrolytic capacitor with lead wire of the present invention adopts two ultra-thin square tantalum fuse differential concatenations, fixing by the liquid epoxies encapsulation then, increased the surface area of tantalum piece, ESR value under its 100KHz high frequency (the ESR value is the equivalent series resistance of electric capacity, and low more then its high frequency characteristics of ESR value is good more) only is about 1/5th of traditional nonpolarity tantalum electrolytic capacitor.While capacitor own wt, small product size also obviously reduces, and its weight, volume only are 1/10th of traditional nonpolarity tantalum electrolytic capacitor, and product thickness is 1/3rd of a CA72A type same size, and is therefore easy for installation; And its lead-out wire is a laminated structure, is connected and fixed with circuit board, and contact area is big, and can be connected and fixed by the soldering mode between the circuit board, and is fixing comparatively firm; Because nonpolarity solid tantalum electrolytic capacitor with lead wire excellent in high-frequency characteristics of the present invention, in light weight, installation dimension is little, easy for installationly firmly saved installing space, reduced weight, thereby can be applied to widely in the various electronic circuits.
Description of drawings
Fig. 1 is a high-frequency nonpolarity solid tantalum electrolytic capacitor with lead wire front view of the present invention;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is a solid tantalum electrolytic capacitor structural representation in the prior art;
Fig. 4 is a prior art solid tantalum electrolytic capacitor insulator structure schematic diagram;
Mark among the figure: 1-tantalum fuse, 2-shell, 3-encapsulated layer, 4-lead-out wire, 5--silver slurry layer, 6-tantalum wire, 7-insulator.
Embodiment
The present invention is described in further detail below in conjunction with embodiment.
1. get 300 gram tantalum powder, part by weight according to 4% takes by weighing 12 gram binding agent camphors, both are mixed and stir, be pressed into the cuboid of 8mm * 6mm * 1.1mm according to needed specification, the tantalum piece of compression moulding is placed crucible, at 1000～2050 ℃, vacuum pressure 3～10 * 10
-3Sintering, passivation 30min under the condition of Pa reduce to the broken stove of vacating after the room temperature then, remove binding agent, and after testing, the impurity carbon content in the tantalum piece is 95ppm;
With remove tantalum piece behind the binding agent immerse fill that concentration is 0.6%, temperature is in 65 ℃ the phosphoric acid solution, the technology bar exposes the solution face, it is connected with positive source, solution is connected with power cathode simultaneously, energized, make the tantalum anode piece under constant current density, boost to setting voltage, under this voltage, keep 2h, the tantalum piece is made as the tantalum fuse 1 that has tantalum wire 6 of capacity 200uF;
2. tantalum fuse 1 is immersed in the manganese nitrate solution that proportion is 1.1～1.46g/cc, heating is decomposed manganese nitrate under 230 ± 5 ℃ vapour atmosphere, repeats this process, and the cathode layer of finishing tantalum fuse 1 coats;
3. on the cathode plane of tantalum fuse 1, coat conductive adhesive silver slurry, make parallel the bonding together of negative electrode of two tantalum fuses 1: with the tantalum fuse 1 behind the tunicle at pH value 9～13, flooded 1～6 minute in 2～6% the aquadag breast solution, dry 30～50min down at 150 ℃, be dipping in 45～65% the silver slurry at silver content then, dipping highly is 65～90% of a product, dry 50～120min down at 150～165 ℃ after in air, shelving 10～30min, it is bonding that two tantalum fuses 1 are carried out the side by bonding silver slurry, solidifies 15～60min down at 120 ℃～280 ℃ then;
4. be welded on the lead-out wire 4 with the tantalum wire 6 of spot welding machine tantalum fuse 1;
5. point is welded the epoxy package 2 that the tantalum fuse 1 of drawing lead-in wire is put into 10mm * 7mm * 3mm, fill with liquid epoxies and fix, solidified under field conditions (factors) 24 hours, form the non-polar condenser of rated voltage 6V capacity 100uF.
By formulated, the proportion of described composition is the 5. described liquid epoxies of step by epoxy resin, the amine that contracts, dibutyl phthalate (DBP), gas-phase silica, silicon dioxide: epoxy resin 70%, the amine 10% that contracts, dibutyl phthalate (DBP) 10%, gas-phase silica 6%, silicon dioxide 4%.
Prepared as stated above nonpolarity solid tantalum electrolytic capacitor with lead wire, comprise that apparent size is the lead-out wire 4 of the insulation crust 2 of 10mm * 7mm * 3mm, two tantalum fuses that are cuboid 1, two flat sheet-like, described tantalum fuse 1 is fixed in the shell 2 by the formed encapsulated layer 3 of liquid-state epoxy resin, the outer surface of tantalum fuse 1 is coated with cathode layer, two outer cathode layers of tantalum fuse are in series by silver slurry layer 5, and each tantalum fuse links to each other with lead-out wire 4 respectively by the tantalum wire 6 of its upper end.
The weight of this electrolytic capacitor is 2.15g, compares with the 25g of CA72A type capacitor, and its weight only is 1/10th of traditional capacitor.Compare with apparent size 16.5mm * 8.6mm * 22mm of existing C A72A type product rated voltage 6V capacity 100uF, its volume also only is 1/10th of a traditional capacitor, and product thickness is 1/3rd of a CA72A type same size.Directly test the CA72A type capacitor of rated voltage 6V capacity 100uF and the ESR measured value of capacitor under the 100KHz condition of present embodiment with the high-frequency test instrument, it the results are shown in Table 1.
Table 1ESR measured value is (m Ω) relatively
Get 300 gram tantalum powder, part by weight according to 4% takes by weighing 12 gram binding agent camphors, both are mixed and stir, be pressed into the cuboid of 8mm * 6mm * 1mm according to needed specification, according to the tantalum fuse 1 that behind the method removal binding agent of embodiment 1 the tantalum piece is made as capacity 200uF, the cathode layer of finishing tantalum fuse 1 coats, on the cathode plane of tantalum fuse 1, coat conductive adhesive silver slurry, make parallel the bonding together of negative electrode of two tantalum fuses 1, be welded on the lead-out wire 4 with the tantalum wire 6 of spot welding machine with tantalum fuse 1; Point is welded the metal-insulator shell 2 that the tantalum fuse 1 of drawing lead-in wire is put into 10mm * 7mm * 3mm, fill with liquid epoxies and fix, solidified under field conditions (factors) 24 hours, form the non-polar condenser of rated voltage 6V capacity 100uF.
By formulated, the proportion of described composition is aforesaid liquid epoxy resin by epoxy resin, the amine that contracts, dibutyl phthalate (DBP), gas-phase silica, silicon dioxide: epoxy resin 80%, the amine 5% that contracts, dibutyl phthalate (DBP) 9%, gas-phase silica 5%, silica 1 %.
Get 300 gram tantalum powder, part by weight according to 4% takes by weighing 12 gram binding agent camphors, both are mixed and stir, be pressed into the cuboid of 8mm * 6mm * 2mm according to needed specification, according to the tantalum fuse 1 that behind the method removal binding agent of embodiment 1 the tantalum piece is made as capacity 200uF, the cathode layer of finishing tantalum fuse 1 coats, on the cathode plane of tantalum fuse 1, coat conductive adhesive silver slurry, make parallel the bonding together of negative electrode of two tantalum fuses 1, be welded on the lead-out wire 4 with the tantalum wire 6 of spot welding machine with tantalum fuse 1; Point is welded the plastic casing 2 that the tantalum fuse 1 of drawing lead-in wire is put into 10mm * 7mm * 3mm, fill with liquid epoxies and fix, solidified under field conditions (factors) 24 hours, form the non-polar condenser of rated voltage 6V capacity 100uF.
By formulated, the proportion of described composition is aforesaid liquid epoxy resin by epoxy resin, the amine that contracts, dibutyl phthalate (DBP), gas-phase silica, silicon dioxide: epoxy resin 50%, the amine 24% that contracts, dibutyl phthalate (DBP) 5%, gas-phase silica 1%, silicon dioxide 20%.
Claims (1)
1. high-frequency nonpolarity solid tantalum electrolytic capacitor with lead wire, comprise insulation crust (2), two tantalum fuses (1), two lead-out wires (4), described tantalum fuse (1) is fixed in the shell (2) by encapsulated layer (3), the outer surface of tantalum fuse (1) is coated with cathode layer, each tantalum fuse links to each other with lead-out wire (4) respectively by the tantalum wire (6) of its upper end, two outer cathode layers that coat of tantalum fuse are in series by silver slurry layer (5), be fixed in the insulation crust (2) by encapsulated layer (3), described lead-out wire (4) is the flat sheet-like lead-out wire, it is characterized in that: described tantalum fuse (1) is cuboid, thickness is 1～2mm, described lead-out wire (4) links to each other by spot welding with tantalum wire (6), described encapsulated layer (3) is a liquid epoxies, by epoxy resin, amine contracts, dibutyl phthalate (DBP), gas-phase silica, silicon dioxide is formulated in proportion, and the proportion of described composition is: epoxy resin 50%～80%, amine 5%～24% contracts, dibutyl phthalate (DBP) 5%～10%, gas-phase silica 1%～6%, silica 1 %～20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100444435A CN101329951B (en) | 2008-05-23 | 2008-05-23 | High-frequency nonpolarity solid tantalum electrolytic capacitor with lead wire and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100444435A CN101329951B (en) | 2008-05-23 | 2008-05-23 | High-frequency nonpolarity solid tantalum electrolytic capacitor with lead wire and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101329951A CN101329951A (en) | 2008-12-24 |
| CN101329951B true CN101329951B (en) | 2011-05-04 |
Family
ID=40205694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100444435A Expired - Fee Related CN101329951B (en) | 2008-05-23 | 2008-05-23 | High-frequency nonpolarity solid tantalum electrolytic capacitor with lead wire and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101329951B (en) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8300387B1 (en) * | 2011-04-07 | 2012-10-30 | Avx Corporation | Hermetically sealed electrolytic capacitor with enhanced mechanical stability |
| CN103680961B (en) * | 2012-08-31 | 2016-05-11 | 中国振华（集团）新云电子元器件有限责任公司 | A kind of manufacture method of tantalum capacitor |
| CN103065798A (en) * | 2013-01-15 | 2013-04-24 | 中国振华（集团）新云电子元器件有限责任公司 | Slice-typed niobium oxide capacitor graphite and silver paste layer preparation method |
| CN103366963B (en) * | 2013-07-22 | 2016-05-18 | 株洲宏达电子股份有限公司 | High temperature chip tantalum capacitor and preparation method thereof |
| JPWO2015037370A1 (en) * | 2013-09-10 | 2017-03-02 | 住友ベークライト株式会社 | Electrolytic capacitor and epoxy resin composition |
| CN103700501B (en) * | 2013-12-17 | 2016-08-24 | 中国振华（集团）新云电子元器件有限责任公司 | A kind of extraction technique of end cap formula tantalum capacitor both positive and negative polarity |
| CN104916442B (en) * | 2015-06-16 | 2017-12-19 | 北京七一八友益电子有限责任公司 | The compound tantalum capacitor of Combined type energetic and its manufacture method |
| CN105118699A (en) * | 2015-09-29 | 2015-12-02 | 株洲日望电子科技股份有限公司 | Anti-oxidation method for tantalum in anode tantalum core sintering process of tantalum capacitor |
| CN105873266A (en) * | 2016-03-31 | 2016-08-17 | 中山市帝森电子科技有限公司 | Anti-creeping LED drive device |
| CN105702463A (en) * | 2016-03-31 | 2016-06-22 | 中山市帝森电子科技有限公司 | Anti-creeping rectifier filter |
| CN105702469A (en) * | 2016-03-31 | 2016-06-22 | 中山市帝森电子科技有限公司 | Full-wave voltage-doubling rectifying circuit |
| CN105742068A (en) * | 2016-03-31 | 2016-07-06 | 中山市帝森电子科技有限公司 | High-safety tantalum electrolytic capacitor |
| CN105722275A (en) * | 2016-03-31 | 2016-06-29 | 中山市中广科研技术服务有限公司 | LED drive device with stable performance |
| CN105764190A (en) * | 2016-03-31 | 2016-07-13 | 中山市中广科研技术服务有限公司 | Safe and stable LED driving device |
| CN105702464A (en) * | 2016-03-31 | 2016-06-22 | 中山市中广科研技术服务有限公司 | Electrolytic capacitor with self discharge function |
| CN105873264A (en) * | 2016-03-31 | 2016-08-17 | 中山市中广科研技术服务有限公司 | Light emitting diode (LED) driving power supply having current-limiting protection |
| CN105810438A (en) * | 2016-03-31 | 2016-07-27 | 中山市帝森电子科技有限公司 | Light emitting diode (LED) driving power supply for driving LED |
| CN105792420A (en) * | 2016-03-31 | 2016-07-20 | 中山市中广科研技术服务有限公司 | LED driving device with stable performance |
| CN106513902B (en) * | 2016-12-22 | 2020-02-04 | 华东交通大学 | Automatic strip spot welding method for tantalum core |
| CN114121493B (en) * | 2021-11-12 | 2023-07-28 | 中国振华(集团)新云电子元器件有限责任公司(国营第四三二六厂) | Nonpolar chip tantalum capacitor and manufacturing method thereof |
| CN114300272A (en) * | 2021-12-29 | 2022-04-08 | 株洲宏明日望电子科技股份有限公司 | Non-polar high-capacity non-solid tantalum capacitor and preparation method thereof |
| CN116072434B (en) * | 2023-03-02 | 2024-05-03 | 福建火炬电子科技股份有限公司 | Sheet type high polymer tantalum fixed capacitor without humidity sensitivity grade and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2746652Y (en) * | 2004-10-14 | 2005-12-14 | 华为技术有限公司 | Non-polar condenser |
| CN1963967A (en) * | 2006-11-23 | 2007-05-16 | 中国振华(集团)新云电子元器件有限责任公司(国营第四三二六厂) | A bipolar solid electrolytic capacitor |
| JP4299512B2 (en) * | 2002-08-07 | 2009-07-22 | グローリー株式会社 | Game machine status management system |
-
2008
- 2008-05-23 CN CN2008100444435A patent/CN101329951B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4299512B2 (en) * | 2002-08-07 | 2009-07-22 | グローリー株式会社 | Game machine status management system |
| CN2746652Y (en) * | 2004-10-14 | 2005-12-14 | 华为技术有限公司 | Non-polar condenser |
| CN1963967A (en) * | 2006-11-23 | 2007-05-16 | 中国振华(集团)新云电子元器件有限责任公司(国营第四三二六厂) | A bipolar solid electrolytic capacitor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101329951A (en) | 2008-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101329951B (en) | High-frequency nonpolarity solid tantalum electrolytic capacitor with lead wire and manufacturing method thereof | |
| TWI415150B (en) | Solid electrolytic capacitor element, manufacturing method thereof and solid electrolytic capacitor, electronic circuit and electronic machine | |
| CN103366963B (en) | High temperature chip tantalum capacitor and preparation method thereof | |
| US10629383B2 (en) | Solid electrolytic capacitor | |
| JP2009505413A (en) | Solid capacitor and manufacturing method thereof | |
| US9305712B2 (en) | Tantalum capacitor and method of manufacturing the same | |
| EP1592029A1 (en) | Capacitor and production method for the capacitor | |
| CN104319103A (en) | Metal shell packaged polymer tantalum capacitor and preparation method thereof | |
| WO2006049317A1 (en) | Capacitor manufacturing jig, capacitor manufacturing device, and capacitor manufacturing method | |
| WO2013114759A1 (en) | Solid electrolytic capacitor and method for producing same | |
| CN103632847B (en) | A kind of axially mold pressing tantalum capacitor and manufacture method thereof | |
| CN103262193B (en) | Gang socket and employ the capacitor element manufacture fixture of this gang socket | |
| US8116061B2 (en) | Solid electrolytic capacitor having current breaking function | |
| KR100885269B1 (en) | Solid electrolytic capacitor and method for preparingthe same | |
| CN112331480A (en) | Preparation method of multifunctional laminated aluminum electrolytic capacitor | |
| KR20020074339A (en) | Method and tantalium condensor for having a coating lead | |
| CN115223798B (en) | Manufacturing method of axial-lead-out organic polymer tantalum fixed capacitor | |
| CN206059180U (en) | A kind of double tantalum core solid electrolyte Ta capacitors of high-voltage large-capacity | |
| CN110853943A (en) | Preparation method of low equivalent series resistance solid aluminum capacitor | |
| CN104240955A (en) | Tantalum electrolytic capacitor and manufacturing method thereof | |
| KR20150053425A (en) | Tantalum capacitor and method of preparing the same | |
| KR20150049920A (en) | Tantalum capacitor and method of preparing the same | |
| CN205303193U (en) | Sheet -type capacitor ware with fuse | |
| CN118609996A (en) | Chip tantalum capacitor and preparation method and application thereof | |
| US20150228413A1 (en) | Solid electrolytic capacitor, method of manufacturing the same, and chip-type electronic component |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Chengdu Jinglin Science and Technology Co., Ltd. Assignor: University of Electronic Science and Technology of China Contract record no.: 2012510000019 Denomination of invention: High-frequency nonpolarity solid tantalum electrolytic capacitor with lead wire and manufacturing method thereof Granted publication date: 20110504 License type: Exclusive License Open date: 20081224 Record date: 20120330 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20130523 |