The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 24, 2007

Filed:

Nov. 14, 2003
Applicants:

Li-duan Tsai, Hsinchu, TW;

Yi-chang Du, Hsinchu, TW;

Inventors:

Li-Duan Tsai, Hsinchu, TW;

Yi-Chang Du, Hsinchu, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01G 9/00 (2006.01); H01B 1/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

A mixture solution for preparing conducting polymers. The conducting polymer is formed from a mixture of monomer and oxidant solution. The oxidant solution has a high concentration, and also includes a five or six-member ring compound with a functional group which acts as a retardant for the polymerization. Thus, the mixture of a monomer and oxidant solution exhibits excellent stability at room temperature. The conducting polymer accumulating in the space of the capacitor element can be more efficiently formed by using this high concentration oxidant solution. Therefore, the immersion and polymerization processes to form conducting polymer as the electrolyte of a solid electrolytic capacitor can be limited to only a few occurrences.


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