Patent ID: 6465809
Filing Date: 2002-10-15
Classification: H01L

Abstract:
A semiconductor light emitting element comprising:a first epitaxial growth layer formed from mixed crystals of a compound semiconductor on a first semiconductor substrate, said first epitaxial growth layer including a first cladding layer formed by selecting a composition ratio of the mixed crystals so as to match a lattice constant of said first semiconductor substrate, an active layer formed on said first cladding layer, and a second cladding layer formed on said active layer; said first semiconductor substrate being removed from the first epitaxial growth layer; a second semiconductor substrate whose a main surface is mirror-polished and which is directly bonded to said first epitaxial growth layer via the mirror-polished surface or a second epitaxial growth layer grown on the mirror-polished surface; and electrodes which are formed on the front side of said first cladding layer and on the back side of said second semiconductor substrate and which supplies an electric current to said active layer, said first semiconductor substrate being formed from GaAs, said first epitaxial growth layer being represented by the composition formula Inx(Ga1âˆ’yAly)1âˆ’xP, a composition ratio of said first cladding layer in said composition formula being 0.45said second semiconductor substrate being formed from GaP, and said second epitaxial growth layer containing GaP as a main component.