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. 14, 2003
Filed:
Mar. 24, 2000
Applicant:
Inventors:
Robert L. Goldberg, Sharon, MA (US);
Michael Gulla, Sarasota, FL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D 5/54 ; C25D 5/48 ; C25D 5/56 ; C25D 5/02 ;
U.S. Cl.
CPC ...
C25D 5/54 ; C25D 5/48 ; C25D 5/56 ; C25D 5/02 ;
Abstract
The invention is directed to a process for electroplating a non-conducting surface such as through-hole walls within a printed circuit board substrate. The process comprises formation of a conductive oxide coating over a substrate, preferably by immersion of said substrate in an aqueous oxidative desmear solution for a time sufficient to form a coating containing conductive dielectric oxidation residue and then, in the absence of a step of forming an additional conductive coating over the residue coating or removing the coating, electroplating metal onto said surface by immersion of the substrate having the coating in an electroplating solution.