Patent ID: 8691327

Claim:
A method of manufacturing a solid electrolytic capacitor, comprising the steps of: forming a capacitor element by winding an anode body having a dielectric coating film on a surface thereof and a cathode body; forming a conductive polymer layer on the outer peripheral surface of said capacitor element and between said anode body and said cathode body by impregnating the capacitor element with a precursor monomer of a conductive polymer and an oxidant and thereafter polymerizing the precursor monomer; and impregnating the capacitor element having the formed conductive polymer layer with a silane compound or a silane compound containing solution and thereafter drying the capacitor element, wherein the concentration of the silane compound in the conductive polymer layer formed between the anode body and the cathode body is lower than the concentration of the silane compound in the conductive polymer layer formed on said outer peripheral surface of said capacitor element.