Patent ID: 6461680
Filing Date: 2002-10-08
Classification: C23C,H01J,H05K,Y10T

Abstract:
A method for fabricating high precision thermally stable electromagnetic coil vanes, comprising steps of:forming a through hole in a substrate; depositing a thin metal layer over an entire surface of opposing surfaces of the substrate; forming exposed wire patterns on the thin layer of metal on the opposing surfaces of the substrate with a resist; depositing a metal on the exposed wire patterns until a desired thickness is obtained, forming a thick metal layer; removing the resist and a portion of the thin metal layer deposited on each of the opposing surfaces of the substrate and underlying the resist; and heating the substrate and the deposited metal thereon to bond the metal to the substrate, wherein the heating is done at a temperature substantially equal to the melting point of a eutectic composition of copper and an oxide of the copper.