An object of the present invention is to provide an antimony-containing niobium
sintered body for a capacitor having a small specific leakage current value, an
antimony-containing niobium powder for use in the sintered body, and a capacitor
using the sintered body. In the present invention, an antimony-containing niobium
powder having an antimony content of preferably about 0.1 to about 10 mol % and
an average particle size of preferably about 0.2 to about 5 m is used. By
using this antimony-containing niobium powder, a sintered body and a capacitor
are constructed.
