A number of manufacturers have now recognised that Niobium can be used to develop capacitors with characteristics comparable with aluminium devices. That’s because Niobium oxide film can be used as a capacitor dielectric.
Now, NEC Corporation claims to have developed the world’s first conductive polymer-type solid electrolytic capacitor fabricated using Niobium. The first sample shipment of the capacitor is scheduled to commence in August this year, with mass production planned in early 2002.
Niobium has certain advantages over Tantalum. First off, it is much more plentiful. Niobium deposits are estimated at more than 100 times those of Tantalum. What’s more, compared to Tantalum, Niobium gives a better yield and is expected to enable more stable production.
NEC’s Niobium capacitor has the equivalent performance to a conventional Tantalum capacitor, and the company anticipates that in the future, Niobium capacitors will eventually replace Aluminium electrolytic capacitors.