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:
Jun. 20, 1995
Filed:
Apr. 11, 1994
John J Bladon, Wayland, MA (US);
Wade Sonnenberg, Foxboro, MA (US);
Inna Sinitskaya, Sudbury, MA (US);
Jeffrey P Burress, Framingham, MA (US);
Christopher P Esposito, Watertown, MA (US);
Shipley Company LLC, Marlborough, MA (US);
Abstract
A process for electroplating a substrate having a surface comprising metallic and non-metallic regions. The process is characterized by selectively forming a protective film over the metallic regions of the substrate surface and forming a sulfide coating selectively over the remaining portions of said substrate. The protective film enables selective sulfide formation only on metallic sites without formation of a sulfide coating on metallic surface regions of the substrate which would otherwise interfere with metal-to-metal bond during electroplating. Following formation of the sulfide conversion coating, the protective film is removed and the surface of the substrate electroplated.