Patent ID: 6905560
Filing Date: 2005-06-14
Classification: C04B,C23C,H01L

Abstract:
1. A method of fabricating a substantially non-agglomerated Ni alloy monosilicide comprising the steps of: (a) forming a Ni alloy layer over a portion of a Si-containing material, wherein said Ni alloy layer comprises one or more alloying additives, where said one or more alloying additives comprise at least one anti-agglomeration additive; (b) annealing said Ni alloy layer at a temperature which is effective in converting a portion of said Ni alloy layer into a Ni alloy monosilicide layer, said Ni alloy monosilicide layer having a higher etch resistance than said Ni alloy layer; (c) removing remaining Ni alloy layer not converted in step (b); and (d) performing a second anneal after step (c) at a temperature that reduces the resistivity of said Ni alloy monosilicide layer.