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. The accommodating
buffer layer is lattice matched to both the underlying silicon wafer and
the overlying monocrystalline compound semiconductor layer. Any lattice
mismatch between the accommodating buffer layer and the underlying
silicon substrate is taken care of by the amorphous interface layer.