Solid electrolytic capacitor containing a conductive polymer

Details Solid electrolytic capacitor containing a conductive polymer Solid electrolytic capacitor containing a conductive polymer

2011-05-10

2011-05-10

Ghyka, Alexander G (Department: 2812)

Metal working

Barrier layer or semiconductor device making

Barrier layer device making

Reexamination Certificate

active

07938866

ABSTRACT:
A method for forming an electrolytic capacitor is disclosed. The method includes forming a conductive polymer coating over the dielectric layer by polymerizing a monomer in the presence of an oxidative polymerization catalyst. The conductive polymer coating is formed by dipping the anode in a polymerization solution comprising the monomer, the oxidative polymerization catalyst, and a polar solvent. The polymerization solution has a temperature of less than about 20° C. Cooling the polymerization solution further stabilizes the polymerization solution and prevents premature polymerization of the monomer(s). Thus, the resulting conductive polymer layer can be more intimately positioned with respect to the anode. As a result, the formed capacitor can exhibit better performance.

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