CN105826080A - Hermetically-sealed solid electrolyte tantalum capacitor packaged through ceramic - Google Patents
Hermetically-sealed solid electrolyte tantalum capacitor packaged through ceramic Download PDFInfo
- Publication number
- CN105826080A CN105826080A CN201610367365.7A CN201610367365A CN105826080A CN 105826080 A CN105826080 A CN 105826080A CN 201610367365 A CN201610367365 A CN 201610367365A CN 105826080 A CN105826080 A CN 105826080A
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- capacitor
- ceramic
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- solid electrolyte
- anode tantalum
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
- H01G9/08—Housing; Encapsulation
- H01G9/10—Sealing, e.g. of lead-in wires
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
- H01G9/022—Electrolytes; Absorbents
- H01G9/025—Solid electrolytes
- H01G9/032—Inorganic semiconducting electrolytes, e.g. MnO2
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
- H01G9/08—Housing; Encapsulation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Inorganic Chemistry (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The invention provides a hermetically-sealed solid electrolyte tantalum capacitor packaged through ceramic. A lower side of an anode tantalum core is fixedly welded with a Ni strip and is then bounded in a ceramic casing through bonding silver slurry, the anode tantalum core is connected with a cathode leading-out end fixed on the ceramic casing, an anode tantalum wire on the anode tantalum core is connected through a connection leading wire with an anode leading-out end fixedly arranged on the ceramic casing, and a cover board is sealed at a top end of the ceramic casing and is in fixed sealing connection with the ceramic casing. According to the capacitor, the Ni strip is added between the anode tantalum core and the bonding silver slurry, the anode tantalum core is connected with the casing by utilizing the soft Ni strip to release temperature stress generated by the anode tantalum core, influence on electrical performance parameters of products can be avoided, high temperature resistance capability of the capacitor is improved, a problem that a capacitor in the prior art can not operate in the high temperature work environment is solved, by utilizing ceramic parallel seam welding, the chip tantalum electrolytic capacitor is sealed, and the hermetically-sealed solid electrolyte tantalum capacitor can normally operate even in the environment with temperature of 180 DEG C.
Description
Technical field
The present invention relates to a kind of maximum operating temperature hermetic capacitor of the ceramic package up to 180 DEG C, be specifically related to the fully closed solid electrolyte Ta capacitor of a kind of ceramic package.
Background technology
Tantalum electrolytic capacitor mainly plays energy storage in electronic circuit, filtering, bypass, coupling, decoupling, the electrically effect such as phase inversion, it it is the requisite ingredient of electronic circuit, its maximum operating temperature scope is generally 125 DEG C, and oil drilling, geological prospecting, space probation, in the industries such as spacecraft, ambient temperature during equipment work is considerably beyond 125 DEG C, existing tantalum electrolytic capacitor can not meet the use requirement of above-mentioned field electronic equipment, although ceramic capacitor, the mineral condensers such as glass glaze condenser can be used in 125 DEG C of high temperature above environment, but the capacitance of these capacitors is the least, tantalum electrolytic capacitor effect in the line can not be substituted.
Summary of the invention
For solving above-mentioned technical problem, the invention provides the fully closed solid electrolyte Ta capacitor of a kind of ceramic package, the fully closed solid electrolyte Ta capacitor of this ceramic package is by increasing nickel strap between anode tantalum core and bonding silver slurry, utilize the temperature stress that nickel strap release tantalum core produces, improve the heat-resisting ability of capacitor, solve the problem that existing capacitor can not meet high-temperature work environment.
The present invention is achieved by the following technical programs.
The fully closed solid electrolyte Ta capacitor of a kind of ceramic package that the present invention provides, including cover plate, anode tantalum core, anode tantalum wire, connecting lead wire, anode exit, bonding silver slurry, nickel strap, cathode end and ceramic shell；The downside of described anode tantalum core is adhered in ceramic shell by bonding silver slurry after being welded and fixed with nickel strap, and connects with the cathode end being fixedly installed on ceramic shell；Anode tantalum wire in described anode tantalum core is connected with the anode exit being fixedly installed on ceramic shell by connecting lead wire；Described cover plate lid is encapsulated in the top of ceramic shell, and is sealedly and fixedly connected with ceramic shell.
Described nickel strap is soft state nickel strap.
Described connecting lead wire is soft state nickel strap.
Parallel seam welding is used to be sealedly and fixedly connected between described cover plate and ceramic shell.
Described nickel strap width be 0.3～0.6mm, thickness is 0.10～0.30mm, length 5～10mm.
Described cover plate is valve metal cover plate.
Anode tantalum wire is connected with anode exit by described connecting lead wire by electric resistance welding mode.
The beneficial effects of the present invention is: by increasing nickel strap between anode tantalum core and bonding silver slurry, soft state nickel strap is utilized anode tantalum core to be connected with shell, the temperature stress produced with release tantalum core, avoid affecting product unit for electrical property parameters, improve the heat-resisting ability of capacitor, solve the problem that existing capacitor can not meet high-temperature work environment；Utilize pottery parallel seam welding, sheet type tantalum electrolyte capacitor is sealed；The present invention remains to normally work under the conditions of ambient temperature up to 180 DEG C.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the top view after Fig. 1 removes cover plate；
In figure: 1-cover plate, 2-anode tantalum core, 3-anode tantalum wire, 4-connecting lead wire, 5-anode exit, 6-bonding silver slurry, 7-nickel strap, 8-cathode end, 9-ceramic shell.
Detailed description of the invention
Technical scheme is described further below, but claimed scope is not limited to described.
The fully closed solid electrolyte Ta capacitor of a kind of ceramic package as depicted in figs. 1 and 2, including cover plate 1, anode tantalum core 2, anode tantalum wire 3, connecting lead wire 4, anode exit 5, bonding silver slurry 6, nickel strap 7, cathode end 8 and ceramic shell 9；The downside of described anode tantalum core 2 is adhered in ceramic shell 9 by bonding silver slurry 6 after being welded and fixed with nickel strap 7, and connects with the cathode end 8 being fixedly installed on ceramic shell 9；Anode tantalum wire 3 in described anode tantalum core 2 is connected with the anode exit 5 being fixedly installed on ceramic shell 9 by connecting lead wire 4；Described cover plate 1 lid is encapsulated in the top of ceramic shell 9, and is sealedly and fixedly connected with ceramic shell 9.
Described nickel strap 7 is soft state nickel strap, described nickel strap 7 width be 0.2～0.8mm, thickness is 0.10～0.40mm, length 5.0～10.0mm..Described connecting lead wire 4 is soft state nickel strap.Anode tantalum wire 3 is connected with anode exit 5 by described connecting lead wire 4 by electric resistance welding mode.Connected the produced temperature stress of tantalum core after being conducive to product temperature to change to be discharged by soft state nickel strap by soft state nickel strap, it is to avoid affect product unit for electrical property parameters, can be to realize 230 DEG C of products of later stage high temperature to do structure design preparation.
Use parallel seam welding to be sealedly and fixedly connected between described cover plate 1 and ceramic shell 9, use parallel seam welding to guarantee product hermeticity energy.Described cover plate 1 can select valve metal cover plate.Metal extension on ceramic shell may select nickel plating or gold-plated two ways.
The present invention utilizes pottery parallel seam welding, is sealed by sheet type tantalum electrolyte capacitor, utilizes soft state nickel strap to connect, by electric resistance welding mode, the temperature stress that tantalum core anode produces with release tantalum core with shell, makes capacitor can normally work when high temperature >=180 DEG C.
The present invention is in actual production process, after the anode tantalum core 2 having impregnated graphite, silver is starched being separated with steel disc, anode tantalum core 2 is welded with nickel strap (wide 0.5mm, the thick soft state of 0.15mm) with resistance welder；The anode tantalum core 2 of a postwelding is put into ceramic shell 9, and uses bonding silver slurry 6 bonding with ceramic shell 9, it is achieved negative electrode connects draws；The resistance welder that uses again after bonding is connected fixing with anode tantalum wire 3 for one end of nickel strap, and the other end is connected with the positive exit 5 on ceramic shell 9, with parallel seam sealing machine, ceramic shell 9 is carried out soldering and sealing with cover plate 1 and realizes sealing structure, complete Product Assembly.
Table 1 to table 4 is high temperature tantalum capacitor 10V100 μ F, the room temperature of 10V220 μ F product and 180 DEG C of unit for electrical property parameters of high temperature that the manufacture method pointed out by the present invention produces.
Table 110V100 μ F room temperature electrical quantity
Table 210V100 μ F high-temperature electric parameter
Table 310V220 μ F room temperature electrical quantity
Table 410V220 μ F high-temperature electric parameter
Claims (7)
1. the fully closed solid electrolyte Ta capacitor of a ceramic package, including cover plate (1), anode tantalum core (2), anode tantalum wire (3), connecting lead wire (4), anode exit (5), bonding silver slurry (6), nickel strap (7), cathode end (8) and ceramic shell (9), it is characterized in that: the downside of described anode tantalum core (2) is adhered in ceramic shell (9) by bonding silver slurry (6) after being welded and fixed with nickel strap (7), and connect with the cathode end (8) being fixedly installed on ceramic shell (9)；Anode tantalum wire (3) in described anode tantalum core (2) is connected with the anode exit (5) being fixedly installed on ceramic shell (9) by connecting lead wire (4)；Described cover plate (1) lid is encapsulated in the top of ceramic shell (9), and is sealedly and fixedly connected with ceramic shell (9).
2. the fully closed solid electrolyte Ta capacitor of ceramic package as claimed in claim 1, it is characterised in that: described nickel strap (7) is soft state nickel strap.
3. the fully closed solid electrolyte Ta capacitor of ceramic package as claimed in claim 1, it is characterised in that: described connecting lead wire (4) is soft state nickel strap.
4. the fully closed solid electrolyte Ta capacitor of the ceramic package as described in arbitrary in claims 1 to 3, it is characterised in that: use parallel seam welding to be sealedly and fixedly connected between described cover plate (1) and ceramic shell (9).
5. the fully closed solid electrolyte Ta capacitor of ceramic package as claimed in claim 1 or 2, it is characterised in that: the width of described nickel strap (7) is 0.3～0.6mm, and thickness is 0.10～0.30mm, length 5～10mm.
6. the fully closed solid electrolyte Ta capacitor of the ceramic package as described in arbitrary in claims 1 to 3, it is characterised in that: described cover plate (1) is valve metal cover plate.
7. the fully closed solid electrolyte Ta capacitor of the ceramic package as described in arbitrary in claims 1 to 3, it is characterised in that: anode tantalum wire (3) is connected with anode exit (5) by described connecting lead wire (4) by electric resistance welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610367365.7A CN105826080B (en) | 2016-05-30 | 2016-05-30 | A kind of fully closed solid electrolyte Ta capacitor of ceramic package |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610367365.7A CN105826080B (en) | 2016-05-30 | 2016-05-30 | A kind of fully closed solid electrolyte Ta capacitor of ceramic package |
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| Publication Number | Publication Date |
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| CN105826080A true CN105826080A (en) | 2016-08-03 |
| CN105826080B CN105826080B (en) | 2018-09-07 |
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| CN201610367365.7A Active CN105826080B (en) | 2016-05-30 | 2016-05-30 | A kind of fully closed solid electrolyte Ta capacitor of ceramic package |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107689300A (en) * | 2017-09-04 | 2018-02-13 | 铜陵百墩实业有限公司 | A kind of chip tantalum capacitor |
| CN111029177A (en) * | 2019-12-19 | 2020-04-17 | 荆门微田智能科技有限公司 | Intelligent linear capacitor packaging complete machine |
| CN111091982A (en) * | 2019-12-16 | 2020-05-01 | 荆门微田智能科技有限公司 | Intelligent carrier circulating type capacitor packaging robot equipment |
| CN111105939A (en) * | 2019-12-16 | 2020-05-05 | 荆门微田智能科技有限公司 | Intelligent carrier circulating type capacitor packaging robot complete machine |
| CN114999828A (en) * | 2022-06-24 | 2022-09-02 | 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) | Sealing device and sealing method for solid electrolyte tantalum capacitor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101840783A (en) * | 2010-04-16 | 2010-09-22 | 株洲宏达电子有限公司 | Lead-out method for lead-out wire of tantalum electrolytic capacitor of full tantalum shell and capacitor |
| CN101901695A (en) * | 2009-05-29 | 2010-12-01 | 阿维科斯公司 | Solid electrolytic capacitor with facedown terminations |
| CN201673957U (en) * | 2010-02-10 | 2010-12-15 | 力佳电源科技(深圳)有限公司 | Soft package lithium battery cathode tab |
| CN204792446U (en) * | 2015-07-13 | 2015-11-18 | 中国振华（集团）新云电子元器件有限责任公司 | Many tantalums core lead wire frame construction of piece formula tantalum electrolytic capacitor |
| CN205645547U (en) * | 2016-05-30 | 2016-10-12 | 中国振华（集团）新云电子元器件有限责任公司 | Totally enclosed tantalum electrolytic capacitor of ceramic package |
-
2016
- 2016-05-30 CN CN201610367365.7A patent/CN105826080B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101901695A (en) * | 2009-05-29 | 2010-12-01 | 阿维科斯公司 | Solid electrolytic capacitor with facedown terminations |
| CN201673957U (en) * | 2010-02-10 | 2010-12-15 | 力佳电源科技(深圳)有限公司 | Soft package lithium battery cathode tab |
| CN101840783A (en) * | 2010-04-16 | 2010-09-22 | 株洲宏达电子有限公司 | Lead-out method for lead-out wire of tantalum electrolytic capacitor of full tantalum shell and capacitor |
| CN204792446U (en) * | 2015-07-13 | 2015-11-18 | 中国振华（集团）新云电子元器件有限责任公司 | Many tantalums core lead wire frame construction of piece formula tantalum electrolytic capacitor |
| CN205645547U (en) * | 2016-05-30 | 2016-10-12 | 中国振华（集团）新云电子元器件有限责任公司 | Totally enclosed tantalum electrolytic capacitor of ceramic package |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107689300A (en) * | 2017-09-04 | 2018-02-13 | 铜陵百墩实业有限公司 | A kind of chip tantalum capacitor |
| CN111091982A (en) * | 2019-12-16 | 2020-05-01 | 荆门微田智能科技有限公司 | Intelligent carrier circulating type capacitor packaging robot equipment |
| CN111105939A (en) * | 2019-12-16 | 2020-05-05 | 荆门微田智能科技有限公司 | Intelligent carrier circulating type capacitor packaging robot complete machine |
| CN111105939B (en) * | 2019-12-16 | 2021-08-27 | 荆门微田智能科技有限公司 | Intelligent carrier circulating type capacitor packaging robot complete machine |
| CN111029177A (en) * | 2019-12-19 | 2020-04-17 | 荆门微田智能科技有限公司 | Intelligent linear capacitor packaging complete machine |
| CN111029177B (en) * | 2019-12-19 | 2022-01-11 | 荆门微田智能科技有限公司 | Intelligent linear capacitor packaging complete machine |
| CN114999828A (en) * | 2022-06-24 | 2022-09-02 | 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) | Sealing device and sealing method for solid electrolyte tantalum capacitor |
| CN114999828B (en) * | 2022-06-24 | 2023-06-02 | 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) | Sealing device and sealing method for solid electrolyte tantalum capacitor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105826080B (en) | 2018-09-07 |
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