Patent ID: 7368048
Filing Date: 2008-05-06
Classification: C25D

Abstract:
1. A method for forming a high-Re-content alloy film which contains Re at 98% or more by atomic composition, said method comprising performing an electroplating process using an electroplating bath which contains an aqueous solution including: a perrhenate ion in a concentration of 0.1 to 8.0 mol/L; at least one ion selected from the group consisting of nickel, iron, cobalt and chromium (III) ions, in a total concentration of 0.005 to 2.0 mol/L; at least one of a Li ion and a Na ion, in a total concentration of 0.0001 to 5.0 mol/L; and at least one organic acid selected from the group consisting of carboxylic acid, hydroxycarboxylic acid and amino acid, in a concentration of greater than 5.0 to 15.0 equivalents to the concentration of all of said metal ions, wherein said electroplating bath has a pH of 0 to 8, and a temperature of 10 to 80° C.