Patent ID: 6251469
Filing Date: 2001-06-26
Classification: H01L,Y10S,Y10T

Abstract:
A method for selectively rendering a substrate non-wettable to an adhesive organic resin, said substrate comprising both organic and metallic surfaces, said method comprising coating the organic and metallic surfaces of the substrate with a single layer of a fluorosilane composition, said fluorosilane composition being applied directly onto said surfaces, and obtaining a substrate comprising both organic and metallic surfaces that are selectively non-wettable to an adhesive organic resin, wherein an electronic device can be wire bonded to said non-wettable metallic surfaces without being impaired by resin bleed from said adhesive organic resin, and wherein said metallic surfaces comprise conductive metals for making electrical connections, wherein said conductive metals are selected from the group consisting of copper, gold, nickel, palladium, and combinations thereof.