Patent ID: 6406743
Filing Date: 2002-06-18
Classification: C23C,H01L

Abstract:
A method for a Nickel silicide formation in an integrated circuit by Electroless Ni deposition on Polysilicon and rapid thermal annealing comprising the following steps:a) forming and patterning a polysilicon layer over a substrate; b) selectively electroless depositing Nickel over said polysilicon layer forming a Nickel layer over said polysilicon layer; c) rapidly thermally annealing said substrate forming a nickel silicide layer over said polysilicon layer; said nickel silicide layer forming part of a semiconductor integrated circuit device; said rapid thermal anneal is performed at a temperature in a range of between about 400 and 750Â° C. for a time in a range of between about 30 and 60 sec and with a nitrogen flow whereby said nickel silicide layer does not have agglomeration.