Patent ID: 8372733
Filing Date: 2013-02-12
Classification: H01L

Abstract:
1. A method of for fabricating a locally passivated germanium-on-insulator substrate which comprises the steps of: providing a substrate having at least a germanium (Ge) containing surface layer as a source substrate, providing passivated local regions made of germanium oxynitride (GeON) along with non-passivated local regions in or on the surface layer for use in forming the germanium-on-insulator substrate, providing a predetermined splitting area in the source substrate, bonding the source substrate to a handle substrate by means of an insulator layer intervening between the source and handle substrates, with the insulator layer in contact with both the passivated and non-passivated local regions, and detaching the source substrate at the predetermined splitting area to thereby obtain the locally passivated germanium-on-insulator substrate.