Patent ID: 8551871

Claim:
A method of fabricating a semiconductor device, comprising: exposing a surface of a semiconductor substrate to a halogen-containing gas that contains at least one of Si and Ge, thereby forming a seed film containing at least one of Si and Ge on the surface of the semiconductor substrate, the semiconductor substrate being provided with a member comprising an oxide and consisting mainly of Si; and exposing the surface of the semiconductor substrate on which the seed film is formed by using the halogen-containing gas to an atmosphere containing at least one of a Si-containing gas not containing halogen and a Ge-containing gas not containing halogen, thereby epitaxially growing a crystal film containing at least one of Si and Ge on the surface, wherein the crystal film is grown while the surface of the semiconductor substrate is exposed to a gas containing hydrogen chloride (HCl) and hydrogen (H 2 ), supply of the hydrogen is started before supply of the hydrogen chloride is started, and the halogen-containing gas contains at least one halogen of Cl and F, and contains germanium tetrafluoride (GeF 4 ).