A process of forming an interface free layer of silicon on a substrate of monocrystalline silicon

摘要

A process of forming an interface free layer of silicon on a substrate of monocrystalline silicon (105) including the steps of: providing a substrate of monocrystalline silicon (105) having a surface substantially free of oxide, depositing a layer of silicon in-situ doped (120) on the surface of the substrate in an oxygen-free environment and at a temperature below 700 DEG C for obtaining a first monocrystalline portion (120m) of the silicon layer adjacent to the substrate and a second polycrystalline portion (120p) of the silicon layer spaced apart from the substrate, and heating the layer of silicon for growing the monocrystalline portion through part of the polycrystalline portion. <IMAGE> <IMAGE> <IMAGE>