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:
Apr. 02, 2002
Filed:
Apr. 15, 1999
Applicant:
Inventors:
Thies Janczek, Flintbek, DE;
Peter Stampka, Schwandorf-Klardorf, DE;
Assignee:
Infineon Technologies AG, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C06K 5/00 ; B32B 9/04 ; B05D 5/12 ; B05D 5/00 ;
U.S. Cl.
CPC ...
C06K 5/00 ; B32B 9/04 ; B05D 5/12 ; B05D 5/00 ;
Abstract
A chip card has a contact zone on which an electrically conductive lacquer applied. The electrically conductive lacquer is based on an intrinsically conductive plastic material. Pigments are added to the electrically conductive lacquer. In an alternative embodiment an electrically nonconductive lacquer is applied to the contact zone. Conductive particles are disposed in the electrically nonconductive lacquer. The electrically conductive lacquer forms a covering for the conductive particles. A method of lacquering a contact zone and a method of producing a chip card are also provided.