Hermetically-sealed solid electrolyte tantalum capacitor packaged through ceramic

A technology of solid electrolyte and ceramic packaging, applied in the direction of electrolytic capacitors, capacitors, capacitor parts, etc., can solve the problem that capacitors cannot meet the high temperature working environment, and achieve the effect of improving high temperature resistance

Active Publication Date: 2016-08-03
CHINA ZHENHUA GRP XINYUN ELECTRONICS COMP ANDDEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the above-mentioned technical problems, the present invention provides a fully sealed solid electrolyte tantalum capacitor with a ceramic package. The fully sealed solid electrolyte tantalum capacitor with a ceramic package adds a nickel strip between the anode tantalum c

Method used

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  • Hermetically-sealed solid electrolyte tantalum capacitor packaged through ceramic
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  • Hermetically-sealed solid electrolyte tantalum capacitor packaged through ceramic

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Embodiment Construction

[0016] The technical solution of the present invention is further described below, but the scope of protection is not limited to the description.

[0017] Such as figure 1 and figure 2 A fully sealed solid electrolyte tantalum capacitor with ceramic package as shown, including cover plate 1, anode tantalum core 2, anode tantalum wire 3, connecting lead 4, anode lead-out 5, bonding silver paste 6, nickel strip 7, cathode The lead end 8 and the ceramic shell 9; the lower side of the anode tantalum core 2 is welded and fixed with the nickel strip 7, and then bonded in the ceramic shell 9 by bonding the silver paste 6, and fixedly arranged on the ceramic shell 9 The cathode lead-out end 8 of the anode tantalum core 2 is connected; the anode tantalum wire 3 on the anode tantalum core 2 communicates with the anode lead-out end 5 fixedly arranged on the ceramic shell 9 through the connection lead 4; the cover plate 1 is sealed on the ceramic shell 9, and is sealed and fixedly conn...

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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 [0001] The invention relates to a ceramic-encapsulated fully-sealed capacitor with a maximum working temperature of up to 180°C, in particular to a ceramic-encapsulated fully-sealed solid electrolyte tantalum capacitor. Background technique [0002] Tantalum electrolytic capacitors mainly play the electrical functions of energy storage, filtering, bypass, coupling, decoupling, and transfer in electronic circuits. They are an indispensable part of electronic circuits. In industries such as drilling, geological exploration, space exploration, and space vehicles, the ambient temperature of the equipment far exceeds 125°C. The existing tantalum electrolytic capacitors can no longer meet the requirements for the use of electronic equipment in the above fields. Although ceramic capacitors and glass glaze capacitors Such inorganic capacitors can be used in high temperature environments above 125°C, but the capacitance of these capacitors is too small to replace the ...

Claims

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Application Information

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IPC IPC(8): H01G9/08H01G9/10H01G9/032
CPCH01G9/032H01G9/08H01G9/10
Inventor 陈杰曹洁李慧琴荣达福何翔
Owner CHINA ZHENHUA GRP XINYUN ELECTRONICS COMP ANDDEV CO LTD
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