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:
Jul. 01, 2008
Filed:
Aug. 23, 2005
Applicants:
Kesheng Feng, Cheshire, CT (US);
Nilesh Kapadia, Shelton, CT (US);
Steve Castaldi, Torrington, CT (US);
Inventors:
Kesheng Feng, Cheshire, CT (US);
Nilesh Kapadia, Shelton, CT (US);
Steve Castaldi, Torrington, CT (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B44C 1/22 (2006.01); C03C 15/00 (2006.01); C03C 25/68 (2006.01); C23F 1/00 (2006.01); C25F 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention related to an improved microetching solution and a method of using the improved composition for roughening a metal surface and increasing the adhesion strength of a metal layer to a subsequently applied layer. The microetching composition is an aqueous solution comprising cupric ion source, a pyridine derivative, multiethyleneamine, and an acid. In a preferred embodiment, the microetching solution of the invention also comprises a source of halide ions such as sodium chloride or hydrochloric acid.