Patent ID: 6352910
Filing Date: 2002-03-05
Classification: C23C

Abstract:
A method of forming an amorphous silicon-based film on a substrate located inside a deposition chamber, the film having a tensile stress of between about 108 and about 109 dyne/cm2, the method comprising:introducing a silicon-based volatile into the deposition chamber; introducing into the deposition chamber a conductivity-increasing volatile including one or more components for increasing the conductivity of the amorphous silicon-based film; and introducing into the deposition chamber a conductivity-decreasing volatile including one or more components for decreasing the conductivity of the amorphous silicon-based film; wherein the conductivity-increasing and conductivity-decreasing volatile are introduced into said deposition chamber at a flow rate ratio between about 1:1 and about 1:1000 conductivity-increasing to conductivity-decreasing volatile; thereby forming said amorphous silicon-based film on said substrate.