Patent ID: 8282733

Claim:
A manufacturing method of a semiconductor apparatus for selectively growing an epitaxial film at a silicon surface of a substrate, by storing the substrate having at least the silicon surface and an insulating surface at the surface thereof into a processing chamber, and by using a substrate processing apparatus for heating an atmosphere of the inside of said processing chamber and said substrate to a selected temperature by a heating unit installed at the outside of said processing chamber, comprising: a step of carrying in the substrate into said processing chamber; a step of heating the atmosphere of the inside of said processing chamber and said substrate to the selected temperature; and a gas supply and exhaust step of supplying and exhausting desired gas into and from said processing chamber; wherein said gas supply and exhaust step comprises: a first supply step of supplying silicon-containing gas and hydrogen gas into said processing chamber; a first exhaust step of exhausting at least said silicon-containing gas from said processing chamber by supplying a first hydrogen as purge into said processing chamber; supplying a first nitrogen gas purge into said processing chamber, and then supplying chlorine-containing gas and nitrogen gas into said processing chamber; exhausting the chlorine containing gas from said processing chamber by supplying a second nitrogen gas purge into said processing chamber, and exhausting said nitrogen gas from said processing chamber by supplying a second hydrogen gas purge; a second supply step of supplying chlorine-containing gas and hydrogen gas into said processing chamber; and a second exhaust step of exhausting at least said chlorine-containing gas from said processing chamber; and said gas supply and exhaust step is repeated by a selected number of times.