Patent ID: 6475429
Filing Date: 2002-11-05
Classification: B22F,C22C,H01L,H05K

Abstract:
A method of manufacturing a Cuâ€”Mo composite heat sink substrate, comprising the steps of:forming a green compact by compacting a molybdenum powder having an average particle size, by the FSSS grain size, of 2-6 &mgr;m by a hydraulic press or a cold isostatic press (CIP) at a pressure of 5 ton/cm2 or less; and impregnating the molybdenum green compact with copper of 20-60 wt % of the total weight of the molybdenum green compact and the impregnated copper in a reducing or inert gas atmosphere furnace at 1080-1300Â° C. to thereby obtain a Cuâ€”Mo composite substrate.