Patent ID: 6542528
Filing Date: 2003-04-01
Classification: B82Y,H01S

Abstract:
A light-emitting semiconductor device, comprising:a semiconductor substrate; an active layer provided above said semiconductor substrate, said active layer producing a red optical radiation; and a cladding layer provided above said semiconductor substrate adjacent to said active layer, said active layer comprising a III-V material in the system of AlGaInPAs having a composition represented as (AlxGa1âˆ’x)&agr;In1âˆ’&agr;PtAs1âˆ’t (0&lE;x<1, 0said cladding layer containing Al and comprising a III-V material in the system of AlGaInPAs having a composition represented as (AlyGa1âˆ’y)&bgr;In1âˆ’&bgr;PvAs1âˆ’v (0