Patent ID: 7465499
Filing Date: 2008-12-16
Classification: C30B,H01L

Abstract:
1. A boron phosphide-based semiconductor device comprising: a silicon single crystal substrate ( a boron phosphide-based polycrystalline layer formed on a {111} surface of said substrate; and a group III-V compound semiconductor layer stacked on said boron phosphide-based polycrystalline layer to form a hetero junction on the boron phosphide-based polycrystalline layer; wherein the boron phosphide-based polycrystalline layer is composed of an aggregate of a plurality of triangular pyramidal or truncated triangular pyramidal single crystal entities ( each of said entities having a {111} bottom face ( wherein the group III-V compound semiconductor layer is composed of crystal planes arrayed at an interval agreeing with a lattice spacing of crystal planes intersecting with surfaces of the single crystal entities (