Patent ID: 7833885
Filing Date: 2010-11-16
Classification: C23C,H01J,H01L

Abstract:
1. A method for forming a microcrystalline silicon containing layer on a substrate comprising: providing a substrate in a processing chamber; supplying a gas mixture having a hydrogen-based gas, a silicon-based gas and an argon gas into the processing chamber, the gas mixture having a volumetric flow ratio of the hydrogen-based gas to the silicon-based gas between about 500:1 and about 3000:1, wherein a volumetric flow ratio of the argon gas to the total combined flow of hydrogen-based gas and the silicon-based gas is between about 5 percent and about 40 percent; and maintaining a process pressure of the gas mixture within the processing chamber at greater than about 3 Torr while depositing a microcrystalline silicon layer on the substrate.