Patent ID: 6248401
Filing Date: 2001-06-19
Classification: C23C,H05K,Y10T

Abstract:
A process for treating a copper foil to enhance adhesion to laminating materials, comprising:vapor depositing at least one metallic treatment layer on at least one side of an untreated copper foil; andapplying at least one layer of at least one adhesion-promoting material over and adhered to said treatment layer, said adhesion-promoting material being suitable for enhancing adhesion between said foil and laminating materials;wherein the metal in the vapor-deposited metallic treatment layer is selected from the group consisting of magnesium, aluminum, titanium, chromium, manganese, copper, bismuth, cobalt, nickel, zinc, indium, tin, molybdenum, silver, gold, tungsten, zirconium, antimony, chromium-zinc alloys, brass, bronze, and mixtures or alloys thereof,wherein said adhesion promoting material is at least one selected from multifunctional epoxy resins and organofunctional silanes.