Chemical vapor deposition method for amorphous silicon

摘要

Method of depositing a layer of amorphous silicon film on a substrate at a very fast deposition rate while maintaining superior film quality. A plasma volume in a process chamber is defined. A total flow rate of a mixture of gases introduced into the chamber is also defined. The total flow rate is the sum of the flow rates of the respective gases in the mixture. Next, a process parameter that includes the plasma volume and total flow rate is defined. The process parameter is then maintained in a first predetermined relationship with a predetermined value during the deposition of the amorphous silicon film.