Patent ID: 6124186
Filing Date: 2000-09-26
Classification: C23C,H01L,Y02E,Y02P

Abstract:
A method of producing device quality, hydrogenated amorphous silicon on a substrate at a deposition rate of at least 50 .ANG./sec, comprising the steps of:flowing silicohydride gas into contact with a filament that is at a temperature in a range of about 1,500.degree. C. to 2,000.degree. C., while (i) maintaining the silicohydride gas at a pressure P in a range of about 10 millitorr to 100 millitorr with the substrate positioned at a distance L from the filament in a range of about 0.5 cm. to 3.0 cm. that produces a pressure times distance (P.times.L) product in a range of about 10 millitorr-cm. to 100 millitorr-cm.; and (ii) maintaining the substrate with a surface temperature in a range of about 200.degree. C. to 600.degree. C.