Patent ID: 7906168
Filing Date: 2011-03-15
Classification: C23C,H01J,H01L

Abstract:
1. A film formation method for a semiconductor process for forming a silicon oxide film by CVD, on a plurality of target substrates placed at intervals in a vertical direction inside a process field configured to be selectively supplied with SiH 3 NC 2 (CH 3 ) 4 gas and O 2 gas, the method repeating a cycle a plurality of times to form a plurality of laminate thin films, thereby forming the silicon oxide film with a predetermined thickness, the cycle comprising: an adsorption step of supplying the SiH then a first purge step of exhausting gas from the process field without supplying the SiH then an oxidation step of supplying the O then a second purge step of exhausting gas from the process field without supplying the SiH a process temperature of 25 to 100° C. is set through the cycle, the adsorption step uses a pressure of 133 to 3,990 Pa inside the process field, and the oxidation step supplies the O