Patent ID: 6107648
Filing Date: 2000-08-22
Classification: H01L

Abstract:
A semiconductor light emitting device, comprising:a substrate;a light emitting layer forming portion formed of an AlGaInP-based compound semiconductor and having an n-type layer and a p-type layer, said light emitting layer forming portion being formed on said substrate;a window layer formed of a large bandgap energy semiconductor layer;a current diffusion layer of a metal film formed over an entire surface of said window layer; andan intermediate lattice constant layer having a lattice constant which is intermediate a lattice constant of said light emitting layer forming portion and a lattice constant of said large bandgap energy semiconductor layer, said intermediate lattice constant layer being interposed between said light emitting layer forming portion and said large bandgap energy semiconductor layer to relieve lattice mismatch between said light emitting layer forming portion and said large bandgap energy semiconductor layer.