Metal capacitor and manufacturing method thereof
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United States of America Patent
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Jun 21, 2011
Grant Date -
Apr 23, 2009
app pub date -
Jun 10, 2008
filing date -
Oct 19, 2007
priority date (Note) -
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Abstract
A metal capacitor with improved electric conductivity includes a metal member having a through-hole forming portion where a plurality of through-holes are formed, an electrode withdrawing portion formed on the through-hole forming portion, and a sealing portion. The metal capacitor includes a metal oxide layer being formed on the metal member and a main electrode layer formed on the metal oxide layer that is formed on the through-hole forming portion of the metal member, to fill the plurality of through-holes. The metal capacitor further includes an insulating layer formed on the main electrode layer and the metal member to externally expose the electrode withdrawing portion of the metal member.
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