Patent ID: 6809011
Filing Date: 2004-10-26
Classification: C30B,H01L,Y10S

Abstract:
A method for producing defect profiles in crystalline crystalline or crystalline-like structure of a substrate during a thermal treatment in a process chamber, said method including the step of:controlling at least one of a concentration and a density distribution of defects as a function of at least two process gases that have different compositions and each contain at least one reactive component, wherein at least two of the process gases are essentially separated from one another and act on different surfaces of the substrate, wherein said different surfaces of the substrate are disposed approximately opposite one another, density distributions of said defects produced by the reactive components of said process gases extend from each surface in a direction toward the respectively other surface, and the density distributions respectively comprise essentially self-interstitial atoms, proceeding from one surface, and essentially vacancies proceeding from the other surface.