High quality epitaxial layers of compound semiconductor materials can be
grown overlying large silicon wafers by first growing an accommodating
buffer layer on a silicon wafer. The accommodating buffer layer is a
layer of monocrystalline oxide spaced apart from the silicon wafer by an
amorphous interface layer of silicon oxide. The amorphous interface layer
dissipates strain and permits the growth of a high quality
monocrystalline oxide accommodating buffer layer. Any lattice mismatch
between the accommodating buffer layer and the underlying silicon
substrate is taken care of by the amorphous interface layer.