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. 27, 1994
Filed:
Aug. 23, 1993
Applicant:
Inventors:
Darryl J McKenney, Milford, NH (US);
Robert D Cyr, Manchester, NH (US);
Assignee:
Parlex Corporation, Methuen, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
B44C / ; C23F / ; B05D / ;
U.S. Cl.
CPC ...
156656 ; 156645 ; 156902 ; 427 97 ;
Abstract
A method of depositing a conductive material on a surface of a printed circuit board, includes the steps of chemically treating at least a portion of a surface of the printed circuit board, disposing a resist layer over the chemically treated surface, depositing a conductive layer in the areas which are not covered by the resist, stripping the resist from the surface of the printed circuit board, and cleaning exposed chemically treated surfaces of the printed circuit board to remove contaminants from the surface of the printed circuit board which were introduced in the chemically treating step.