The present invention relates to a solid electrolytic capacitor having a masking
structure in which the insulation between the anode part and the cathode part can
be ensured without fail, to its production method, to a method for coating a masking
agent on a solid electrolytic capacitor substrate, and to an apparatus therefor.
According to the present invention, the masking material covers the dielectric
film on the metal material having valve action and sufficiently infiltrates into
the core metal made of a metal having valve action while the solid electrolyte
is masked by the masking material without fail, so that a solid electrolytic capacitor
can be produced that has a reduced leakage current and a reduced stress generated
at the reflow treatment or the like.
