Semiconductor device manufacturing: process – Making passive device – Stacked capacitor
Reexamination Certificate
2005-03-08
2005-03-08
Nelms, David (Department: 2818)
Semiconductor device manufacturing: process
Making passive device
Stacked capacitor
C438S610000
Reexamination Certificate
active
06864147
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.
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Fife James A.
Sebald Zebbie L.
AVX Corporation
Dority & Manning P.A.
Nelms David
Nguyen Thinh T
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