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Solid electrolytic capacitor for embedding into a circuit board

一种固体电解电容、固体电解质的技术，应用在固体电解电容器、电解电容器、电路等方向，能够解决制约电子线路小型化等问题

Inactive Publication Date: 2010-03-17
AVX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the capacitors are surface mounted on the board, the height of these capacitors still restricts the miniaturization of electronic circuits, especially for relatively large case sizes

Method used

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  • Solid electrolytic capacitor for embedding into a circuit board
  • Solid electrolytic capacitor for embedding into a circuit board
  • Solid electrolytic capacitor for embedding into a circuit board

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Embodiment Construction

[0014] It will be appreciated by those skilled in the art that this discussion is a description of typical embodiments only and is not meant to be limiting of the broader aspects of the invention.

[0015] Generally, the present invention relates to electrolytic capacitors configured to be embedded into circuit boards. An electrolytic capacitor includes a capacitive element, an anode and a cathode terminal, and a case enclosing the capacitive element such that at least a portion of the anode and cathode terminals are exposed and extend outward from opposite ends of the case. Each terminal includes an upper surface facing the capacitive element and a lower surface facing away from the capacitive element. In contrast to conventional surface mount electrolytic capacitors, the upper surface of these exposed anode and cathode terminal portions are mounted on a circuit board. In this way, the capacitor can be mounted essentially "upside down", so that some or all of its thickness i...

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Abstract

An electrolytic capacitor that is configured to be embedded into a circuit board is provided. The electrolytic capacitor contains a capacitor element, anode and cathode terminations, and a case that encapsulates the capacitor element and leaves at least a portion of the anode and cathode terminations exposed that extend outwardly from opposite ends of the case. Each of the terminations possesses an upper surface that faces toward the capacitor element and a lower surface that faces away from the capacitor element. In contrast to conventional surface-mounted electrolytic capacitors, the upper surfaces of these exposed anode and cathode termination portions are mounted to the circuit board. In this manner, the capacitor may essentially be mounted ''upside down'' so that some or all of its thickness becomes embedded within the board itself, thereby minimizing the height profile of the capacitor on the board.

Description

technical field [0001] The present invention generally relates to a solid electrolytic capacitor, in particular to a solid electrolytic capacitor for embedding into a circuit board. Background technique [0002] Solid electrolytic capacitors (eg, tantalum capacitors) make a major contribution to the miniaturization of electronic circuits and enable such circuits to be used in extreme environments. Many traditional solid electrolytic capacitors have J-terminals and can be surface mounted on a printed circuit board. These terminals are located at the ends of the capacitor and extend its overall length. Therefore, when a plurality of the above-mentioned capacitors are mounted side-by-side on the board, the spacing must be large enough to prevent short circuits, thus hindering the dense packing of the capacitors. Capacitors have also been developed with their terminals located essentially at the bottom of the capacitor - also known as face down (facedown) terminals. However, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/15H01G9/008H01G9/08H01G9/10H05K1/18
CPCH01G9/15H05K1/182H01G9/012H01G2/065H01G2/06
Inventor 斯坦尼斯拉夫·泽德尼切克拉吉斯拉夫·马雷克
Owner AVX CORP