Patent ID: 7858158
Filing Date: 2010-12-28
Classification: C23C,H05H

Abstract:
1. A method for making a layer of polycrystalline silicon on a target substrate in a deposition chamber comprising: supporting said target substrate; providing a high frequency induction coupled plasma torch comprising a coil, said induction coupled plasma torch being selected positionable along a surface area of one side of said target substrate, a distance of 30-55 mm separating said coil from said target substrate; introducing a plasma gas consisting essentially of an inert gas into said high frequency induction coupled plasma torch to form a plasma within said coil; injecting reactants into said high frequency induction coupled plasma torch to produce a reaction product; and depositing said reaction product of said induction coupled plasma torch onto said target substrate to create a deposit on said target substrate having an upper deposition surface while maintaining said distance between said upper deposition surface and said coil.