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. 15, 1987
Filed:
Apr. 17, 1986
Applicant:
Inventors:
Paul L Hung, Edison, NJ (US);
Richard J Radigan, Toms River, NJ (US);
David S Rosen, Avenel, NJ (US);
Assignee:
M&T Chemicals Inc., Woodbridge, NJ (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; G03C / ; G03C / ;
U.S. Cl.
CPC ...
428461 ; 428901 ; 430271 ; 430275 ; 430277 ; 430280 ; 430214 ; 430285 ;
Abstract
A printed circuit board having improved adhesion between solder mask and metal includes a primer film on the metal deposited from an aqueous solution which includes 0.01 to 10% by weight of a carboxyl-containing polymer or copolymer.