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. 19, 1996
Filed:
Sep. 20, 1995
Applicant:
Inventors:
Gerhard-Dieter Wolf, Dormagen, DE;
Friedrich Jonas, Aachen, DE;
Reinhard Schomacker, Leverkusen, DE;
Assignee:
Bayer AG, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25D / ; C25D / ; C25D / ;
U.S. Cl.
CPC ...
205125 ; 205159 ; 205162 ; 205163 ; 205164 ; 205165 ; 205166 ;
Abstract
Process for through-hole plating of printed circuit boards and multilayers by applying a conductive layer of a polythiophene onto the walls of the through-holes and electrodeposition of copper onto the walls of the through-holes, characterized in that a microemulsion of a monomeric thiophene of the formula (I) is used to form the conductive polythiophene layer, ##STR1## in which X denotes oxygen or a single bond,