Inventors:
James A. Fife - Myrtle Beach SC, US
Zebbie L. Sebald - Myrtle Beach SC, US
Assignee:
AVX Corporation - Myrtle Beach SC
International Classification:
H01L021/20
Abstract:
A solid electrolytic capacitor that comprises an anode that contains a valve-action metal (e. g. , tantalum, niobium, and the like) and a dielectric film overlying the anode is provided. The capacitor also comprises a protective coating overlying the dielectric film, wherein the protective coating contains a relatively insulative, resinous material. For example, in one embodiment, the resinous material can be a drying oil, such as olive oil, linseed oil, tung oil, castor oil, soybean oil, shellac, and derivatives thereof. The capacitor also comprises a conductive polymer coating overlying the protective coating. As a result of the present invention, it has been discovered that a capacitor can be formed that can have a relatively low leakage current, dissipation factor, and equivalents series resistance.