Patent ID: 7190572

Claim:
A capacitor element comprising: a chip body including a porous sintered body formed by sintering valve metal powder into a rectangular parallelepiped having first to fourth side surfaces, a first end surface and a second end surface which is opposite from the first end surface, and an anode wire projecting from the first end surface, the first and third surfaces being opposite to each other, the second and fourth surfaces being opposite to each other; a dielectric film formed on the metal powder of the chip body; a solid electrolyte layer formed on the dielectric film to cover the second end surface and the first to fourth side surfaces of the chin body; and a cathode-side electrode film formed on the chip body via the solid electrolyte film; wherein the first side surface is connected to the second end surface via a first beveled or rounded surface, the third side surface is connected to the second end surface via a second beveled or rounded surface, the second side surface meeting the second end surface along a first edge line, the fourth side surface meeting the second end surface along a second edge line, the solid electrolyte film and the cathode-side electrode film bulging to a greater extent along the first and second edge lines than along the first and second beveled or round surfaces.