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:
Oct. 13, 1998
Filed:
Jul. 11, 1996
Applicant:
Inventors:
Thomas Popp, Nuremberg, DE;
Armin Bolz, Erlangen, DE;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01G / ;
U.S. Cl.
CPC ...
361508 ; 361509 ; 361519 ; 361529 ;
Abstract
An electrolytic capacitor, in particular a tantalum electrolytic capacitor, is provided with a metal anode, in particular a sintered tantalum anode (1), a non-conducting insulating layer applied on it by means of molding the metal anode (1) for forming the dielectric of the electrolytic capacitor, an electrolyte in liquid, pasty or solid form, which forms the cathode of the electrolytic capacitor, and a flat cathode contact (5, 17) for providing current to the electrolyte. The flat cathode contact (5, 7) is provided with an electrically conducting, fractal surface coating (6), at least in the area of its contact surface with the electrolyte.