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.
Patent No.:
Date of Patent:
Dec. 30, 2003
Filed:
Nov. 21, 2002
NEC Tokin Toyama, Ltd., Toyama, JP;
Abstract
A solid electrolytic capacitor is disclosed which combines low LC with Low ESR and which has good characteristics even in a high frequency range, and a method for preparing the same is also disclosed. In the solid electrolytic capacitor whose electrolytic layer contains electrically conductive particles, non-conductive particles are present in at least a part of an interface between a dielectric layer and the electrolyte layer. By employing the structure, local intensifications of field strength in the dielectric layer are prevented to enable a problem of increase in LC to be overcome while keeping ESR low. By the method which comprised a step of applying a colloidal dispersion containing the non-conductive particles in the form of colloidal particles to the post-electrolytic layer formation step product, the solid electrolytic capacitor having the above-mentioned structure can be prepared efficiently.