Patent ID: 8466049

Claim:
A producing method of a semiconductor device, comprising: loading a silicon substrate into a processing chamber, the silicon substrate having a silicon nitride film or a silicon oxide film on at least a portion of a surface thereof and a silicon surface being exposed from the surface; pre-processing the substrate by introducing a cleaning gas into the chamber to clean the substrate surface; a first step of introducing at least an etching gas into the processing chamber after loading the silicon substrate to establish a state where a chlorine or a fluorine atom, which is a factor to inhibit growth of an epitaxial film, adheres to both a surface of the silicon nitride film or the silicon oxide film and the silicon surface; a second step of introducing at least a silane-compound gas into the processing chamber after the first step; a third step of introducing at least the etching gas into the processing chamber after the second step; and repeating the second step and the third step a plurality of times to selectively grow an epitaxial film on the silicon surface.