Patent ID: 6485542
Filing Date: 2002-11-26
Classification: H01F,Y02P

Abstract:
A method of manufacturing an Niâ€”Fe alloy sputtering target for forming magnetic thin films comprising the steps of: obtaining an alloy of Ni and Fe by dissolving material containing Ni and Fe in hydrochloric acid to form an aqueous solution of chlorides, removing impurity metal ions by allowing said aqueous solution of chlorides to contact an ion exchange resin, evaporating to dryness or concentrating the obtained solution and dissolving it in water to form an aqueous solution of chloride having pH between 0 and 3, removing organic matters in said solution using activated charcoal, and conducting electrolytic refining of said aqueous solution as an electrolytic solution to obtain Ni and Fe; melting Ni and Fe to obtain an alloy; and then casting the obtained alloy.