Patent ID: 6278136
Filing Date: 2001-08-21
Classification: H01L,H01S

Abstract:
A semiconductor light emitting element comprising:a multi-layered structure including at least a substrate, a n-type cladding layer made of an n-type nitride compound semiconductor on said substrate, an active layer made of a nitride compound semiconductor on said n-type cladding layer, a p-type cladding layer made of a p-type nitride compound semiconductor on said active layer, and a p-type contact layer made of a p-type nitride compound semiconductor on said p-type cladding layer, and further including an n-type region made by selectively introducing an n-type dopant from a selective area of the surface of said p-type contact layer to extend from the surface of said multi-layered structure at least to said n-type cladding layer;a first electrode formed in contact with the surface of said n-type region of said multi-layered structure;a second electrode formed in contact with the surface of said p-type contact layer,said n-type region containing hydrogen which is implanted to inactivate a p-type dopant contained in said p-type contact layer and in said p-type cladding layer so that said p-type layer and said p-type cladding layer become non-contributive to electric conduction in said n-type region;said p-type contact layer containing magnesium (Mg), and said n-type dogant in said n-type regions being selected from the group consisting of silicon (Si), Germanium (Ge), Selenium (Se) and tellurium (Te); andsaid p-type contact layer having a specific resistance at least as high as 1000 times the specific resistance of said n-type cladding layer, and W>100d being satisfied where d is the thickness of said p-type contact layer and W is the distance between said n-type region and said second electrode.