Patent ID: 8064192

Claim:
A solid electrolytic capacitor comprising: a first capacitor element including a first positive electrode body made of valve metal, a first dielectric oxide layer provided on a surface of the first positive electrode body, a first solid electrolytic layer made of conductive polymer provided on the first dielectric oxide layer, and a first negative electrode layer provided on the first solid electrolytic layer; a package made of insulating resin covering the first capacitor element, the package having a first edge surface from which the first positive electrode body is exposed; a first base electrode provided at the first edge surface of the package and made of non-valve metal coupled with the first positive electrode body; a first diffusion layer for connecting the first positive electrode body to the first base electrode, the first diffusion layer being made of the valve metal of the first positive electrode body and the non-valve metal of the first base electrode; a first external electrode provided on the first base electrode; and a second external electrode connected to the first negative electrode layer, wherein the first base electrode is a metal layer made of metal particles made of the non-valve metal colliding with the first edge surface of the package at a speed not smaller than 200 msec and not greater than a speed of sound.