Patent ID: 8105647
Filing Date: 2012-01-31
Classification: C23C

Abstract:
1. A method of forming an oxide film on substrates, comprising: placing a plurality of substrates on a substrate mounting unit in a reaction space; and supplying a process gas onto the substrates through a gas injector with a plurality of injection parts that are adapted to rotate over the substrates, wherein supplying the process gas includes: supplying a silicon-containing gas comprising at least one of SiH supplying a purge gas through a second injection part of the gas injector; supplying a reaction gas comprising at least one of O supplying a purge gas through a fourth injection part of the gas injector; and allowing the first to fourth injection parts to pass the substrates sequentially, wherein the first to fourth injection parts are sequentially arranged in a clockwise direction, and wherein a first distance in a clockwise direction from the first injection part for supplying the silicon-containing gas to the second injection part, and a second distance in a counterclockwise direction from the first injection part to the fourth injection part are shorter than a third distance in a counterclockwise direction from the third injection part for supplying the reaction gas to the second injection part, and a fourth distance in a clockwise direction from the third injection part to the fourth injection part.