Solid electrolytic capacitor
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United States of America Patent
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Aug 16, 2011
Grant Date -
May 21, 2009
app pub date -
Nov 19, 2008
filing date -
Nov 21, 2007
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A solid electrolytic capacitor that prevents leakage current from increasing. The solid electrolytic capacitor includes an anode, a cathode, and a dielectric layer arranged between the anode and the cathode in contact with the cathode. The dielectric layer includes a plurality of recesses arranged in the surface of the dielectric layer, each recess having an opening in an interface with the cathode. Each of the recesses has a depth that is 0.1 to 1.5 times the diameter of the opening.
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