Patent ID: 6281118
Filing Date: 2001-08-28
Classification: H01L

Abstract:
Method of manufacturing a semiconductor device, comprising the steps of;providing a semiconductor substrate on which a lower conductor pattern is formed, the lower conductor pattern having a first doped polysilicon layer and a first tungsten silicide layer formed thereon;forming an intermediate insulating layer on the substrate;etching the intermediate insulating layer to expose a portion of the surface of the first tungsten silicide layer of the lower conductor pattern, thereby forming a contact hole then;annealing the first tungsten suicide layer, the annealing is performed at the temperature of 600.degree. C. to 900.degree. C.; andrecrystalizing the first tungsten silicide layer to be transformed into the original crystal structure and removing contamination and a native oxide layer remaining on the surface of the first tungsten silicide layer by rapid thermal processing, the rapid thermal processing is performed at the temperature of 900.degree. C. to 1,000.degree. C. under H.sub.2 atmosphere.