Solid electrolytic capacitor containing a cathode termination with a slot for an adhesive
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United States of America Patent
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Aug 20, 2013
Grant Date -
Sep 13, 2012
app pub date -
Mar 11, 2011
filing date -
Mar 11, 2011
priority date (Note) -
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Abstract
A capacitor containing a solid electrolytic capacitor element that includes an anode, dielectric, and a cathode that includes a solid electrolyte is provided. An anode lead extends from the anode and is electrically connected to an anode termination. Likewise, a cathode termination is electrically connected to the cathode. The cathode termination contains a planar portion that is oriented generally parallel to a lower surface of the capacitor element. An interior slot is defined by the planar portion within which is disposed a conductive adhesive that connects the cathode termination to the capacitor element. By disposing the adhesive within a slot of a planar portion of the cathode termination, the present inventors have discovered that the tendency of the adhesive to bleed toward the edges of the termination can be limited. Among other things, this improves the mechanical stability of the capacitor upon encapsulation and also improves electrical performance.
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