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:
Sep. 01, 1998
Filed:
Dec. 11, 1995
Applicant:
Inventors:
Andrew David Price, Surrey, GB;
Peter Thomas McGrath, Mission Viejo, CA (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427 98 ; 106 1405 ; 216 13 ; 252 792 ; 252 794 ; 427123 ; 427327 ;
Abstract
A process for copper coating printed circuit boards is disclosed. The process includes a treating step in which a metal surface is contacted with an adhesion promotion composition material. The adhesion promotion material includes 0.1 to 20% by weight hydrogen peroxide, an inorganic acid, an organic corrosion inhibitor and a surfactant.