Abstract: A method of manufacturing a solid electrolytic capacitor having an even conductive polymer layer includes the steps of forming a conductive polymer layer on an anode element by bringing a dispersion containing a conductive solid and a first solvent into contact with the anode element having a dielectric film formed thereon, washing the anode element with a second solvent higher in boiling point than the first solvent, in which the conductive solid can be dispersed, after the conductive polymer layer is formed, and drying the anode element washed with the second solvent at a temperature not lower than the boiling point of the first solvent and lower than the boiling point of the second solvent.

Abstract: Provided is a method of manufacturing a solid electrolytic capacitor, including the steps of: forming a capacitor element including an anode body having a dielectric coating film on a surface thereof; impregnating the capacitor element with a polymerization liquid containing a precursor monomer of a conductive polymer and an oxidant; impregnating the capacitor element impregnated with the polymerization liquid with a silane compound or a silane compound containing solution; and forming a conductive polymer layer by polymerizing the precursor monomer after impregnating the capacitor element with the silane compound or the silane compound containing solution.