Patent ID: 8659023
Filing Date: 2014-02-25
Classification: C30B,H01L

Abstract:
1. A semiconductor device comprising: a monocrystalline substrate having a surface and including near-surface region adjacent to a surface, the monocrystalline substrate having second lattice constant b in a region outside of the near-surface region; and a monocrystalline layer having a first lattice constant a disposed on the surface of the monocrystalline substrate, the second lattice constant being different from the first lattice constant a, wherein the monocrystalline substrate includes lattice matching atoms at least in the near-surface region which distort the lattice constant of the monocrystalline substrate in the near-surface region so that the near-surface region has a lattice constant which transitions from the second lattice constant b to the second lattice constant a at the surface and thereby match the first lattice constant a of the monocrystalline layer.