Patent ID: 8105922

Claim:
A method of thin film epitaxial growth using atomic layer deposition comprising: positioning a substrate within a chamber; pumping said chamber to maintain a base pressure within said chamber via a vacuum pump while a stock valve connected between said chamber and said vacuum pump is open; closing said stock valve followed by flowing a first deposition precursor to said substrate within said chamber, and after stopping flowing said first deposition precursor, said chamber is held in a closure condition for a first period of time to reach thermal equilibrium while forming a first monolayer on said substrate; opening said stock valve to pump said chamber while purging said chamber with an inert gas simultaneously; stopping purging said chamber while continuously pumping said chamber for maintaining said base pressure within said chamber; closing said stock valve followed by flowing a second deposition precursor to said substrate within said chamber, and after stopping flowing said second deposition precursor said chamber is held in a closure condition for a second period of time to form a second monolayer on said substrate to reach thermal equilibrium; and opening said stock valve to pump said chamber while purging said chamber with said inert gas simultaneously.