Patent ID: 6287933
Filing Date: 2001-09-11
Classification: H01L

Abstract:
A method of producing a semiconductor device having a thin film resistor comprising chromium, silicon and nitrogen, formed on a substrate, said method being characterized in that said thin film resistor forming process consists essentially of the steps of preparing a target consisting essentially of chromium and silicon, wherein the weight percentage of the silicon to the total weight of the chromium and silicon is 41 to 51 weight %, and reactive sputtering a substrate, utilizing said target in an atmosphere of an inert gas containing 1-2% nitrogen gas so as to form a Cr--Si--N thin film having amorphous condition and having the same energy band construction as that of metal, and further characterized in that a thermal treatment is applied to said thin film resistor after said thin film resistor is formed, wherein said thermal treatment is carried out at a temperature not exceeding 500.degree. C., by preventing a temperature in excess of 500.degree. C. from being applied to said thin film resistor, so as to maintain said amorphous condition of said thin film resistor.