Patent ID: 7927715
Filing Date: 2011-04-19
Classification: B32B,C21D,H01L,Y10T

Abstract:
1. A clad textured metal substrate for forming an epitaxial thin film thereon comprising a metallic layer and a copper layer which is bonded to at least one face of the metallic layer, wherein the copper layer has a {100}<001>cube texture in which a deviating angle Δφ of crystal axes satisfies Δφ≦6 degrees, wherein the metallic layer and the copper layer form an approximately flat bonded interface of which the waviness is in a range of 1 to 500 nm, wherein an intermediate layer is present on the surface of the copper, so as to form the epitaxial thin film thereon, wherein the intermediate layer is provided with at least one layer of a material selected from the group consisting of nickel, nickel oxide, zirconium oxide, rare-earth oxide, magnesium oxide, strontium titanate (STO), strontium barium titanate (SBTO), titanium nitride, silver, palladium, gold, iridium, ruthenium, rhodium, and platinum, and wherein the intermediate layer has a thickness in the range of 10 nm to 10 μm.