Patent ID: 6579425
Filing Date: 2003-06-17
Classification: C23C

Abstract:
In the fabrication of thin film transistors (TFTs), a method for forming a thin film of silicon overlying a barrier layer in a continuous process, the method comprising:introducing a glass substrate; forming a vacuum seal; sputter depositing a barrier layer of silicon dioxide base coat overlying the glass substrate; without breaking the vacuum seal, sputter depositing a thin film of silicon overlying the barrier layer; wherein sputter depositing a barrier layer includes sputter depositing a base coat using a DC magnetron process in an atmosphere including oxygen and helium, and a gas selected from the group consisting of Ar, Ne, and Kr; and, wherein sputter depositing a thin film of silicon overlying the barrier layer includes forming a thin film from the group of materials consisting of amorphous silicon (a-Si) and polysilicon (p-Si).