Patent ID: 9005459
Filing Date: 2015-04-14
Classification: C23C,H01J,H01L

Abstract:
1. A film deposition method comprising steps of: loading plural substrates each of which includes a pattern including a concave part in a reaction chamber, said plural substrates adjacent with each other in the form of shelves; depositing a silicon oxide film on the plural substrates by supplying a silicon-containing gas and an oxygen-containing gas to the reaction chamber; etching the silicon oxide film deposited on the plural substrates in the step of depositing by supplying an etching gas to the reaction chamber; and alternately repeating the step of depositing and the step of etching until said concave part is filled entirely with said silicon oxide film from a bottom of said concave part to a level above a top edge of said concave part, wherein said etching gas is a mixed gas including HF and NH wherein said HF and NH the film deposition method further comprising a step of lowering a substrate temperature to a first temperature lower than 130° C., the step being carried out after the step of depositing, the film deposition method further comprising a step of gradually raising the substrate temperature to a second temperature higher than 130° C., the step of depositing being carried out after the step of etching, wherein byproduct of the etching is removed during the step of gradually raising the substrate temperature by way of sublimation.