Patent ID: 7731831
Filing Date: 2010-06-08
Classification: C23C,C25D,H05K,Y10T

Abstract:
1. A method for manufacturing a composite material, comprising the steps of: providing a support layer; depositing a reactive element containing layer having a reactive element selected from the group consisting of titanium, zirconium, barium, magnesium, silicon, niobium, calcium and mixtures thereof on a surface of said support layer; depositing a release layer on said coated surface of said support layer: electrolytically depositing a copper foil layer on said release layer whereby a first side of said copper foil layer contacts said release layer; and subjecting the support layer, reactive element containing layer, release layer and copper foil layer to an annealing heat treatment prior to application of a polymer dielectric to the copper foil layer, by heating said composite material at a temperature of from about 100° C. to about 350° C. for up to 48 hours.