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:
Nov. 24, 1998
Filed:
Mar. 28, 1997
Applicant:
Inventors:
Gerhard Rosch, Nurnberg, DE;
Walter Stuckmann, Altdorf, DE;
Assignee:
Grundig AG, Fuerth, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427 97 ; 427 98 ; 427306 ; 427337 ; 427340 ;
Abstract
The invention pertains to a process for throughplating of printed circuit boards using conductive plastics for direct plating, wherein a polymer film with intrinsic electric conductivity is adhesively deposited on non-conductive areas of the printed circuit boards, whereupon a metal film is applied. Selective production of the polymer film has previously been seen as requiring an oxidative pre-treatment of the printed circuit board, though this can negatively affect the further course of the process. With the present invention the potential negative effects are avoided by forgoing the oxidation pre-treatment.