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:
Dec. 01, 1998
Filed:
Apr. 30, 1997
Applicant:
Inventors:
Donald Ferrier, Thomaston, CT (US);
Donna Kologe, Thomaston, CT (US);
Gary B Larson, Cheshire, CT (US);
Assignee:
MacDermid, Incorporated, Waterbury, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427 98 ; 427304 ; 427437 ; 4274431 ; 427301 ; 106-105 ; 106-111 ; 205125 ; 205163 ; 205210 ;
Abstract
This invention proposes the use of an activator solution comprising precious metal ions and an oxidizing agent for the selective activation and plating of metallic surfaces. The invention is particularly useful in plating exposed copper surfaces on printed circuit boards without substantial extraneous plating on the soldermask surfaces.