The manufacturing process begins with slitting of the foil. This is where the foil is cut depending on the Capacitance value and dimensions. The foil and paper go into winding where its rolled into a cylindrical shape, after that the tabs are welded onto the deck. Once this is complete it goes into the impregnation chamber where the capacitor is soaked in electrolytes, so the separator paper can absorb the electrolytes. The capacitor is then put into a can and sealed. The aging process repairs the damaged parts of the dielectric where the foil was slit and the rated voltage is applied. Finally, the capacitor goes into standard testing such as ESR, capacitance and leakage current.