Patent ID: 7807495

Claim:
A method of manufacturing a semiconductor film comprising steps of: heating a catalytic wire to at least a prescribed temperature; and forming a semiconductor film by introducing source gas for a semiconductor and decomposing said source gas with heated said catalytic wire after heating said catalytic wire to at least said prescribed temperature, wherein: said step of forming said semiconductor film includes a step of introducing said source gas while controlling the pressure of an atmosphere for forming said semiconductor film to a prescribed level with pressure control gas containing no said source gas, said pressure control gas contains hydrogen, and said step of heating said catalytic wire to at least said prescribed temperature includes steps of: setting said catalytic wire to a temperature lower than said prescribed temperature when controlling the pressure of said atmosphere to said prescribed level with said pressure control gas before introducing said source gas, and heating said catalytic wire to at least said prescribed temperature before introducing said source gas after controlling the pressure of said atmosphere to said prescribed level with said pressure control gas.