Patent ID: 7635872

Claim:
A semiconductor light emitting device, comprising: i) a first electrical conduction type semiconductor base plate, ii) a first electrical conduction type electrode, iii) a first electrical conduction type cladding layer, iv) a semiconductor active layer, v) a second electrical conduction type cladding layer, and vi) a second electrical conduction type electrode, the first electrical conduction type electrode, the first electrical conduction type cladding layer, the semiconductor active layer, the second electrical conduction type cladding layer, and the second electrical conduction type electrode being formed on the first electrical conduction type semiconductor base plate, the first electrical conduction type semiconductor base plate being a base plate selected from the group consisting of a BeO base plate, a TiB 2 base plate, a ScB 2 base plate, a VB 2 base plate, a YB 2 base plate, an MnB 2 base plate, an MgB 2 base plate, an FeB 2 base plate, and a CrB 2 base plate, each of the first electrical conduction type cladding layer and the second electrical conduction type cladding layer being a BAlGaN layer, which has been formed by use of a laser assisted metalorganic vapor phase epitaxy technique, the semiconductor active layer being constituted of a single-layer or laminate structure containing a BGaN layer and/or a BAlGaN layer, which has been formed by use of a laser assisted metalorganic vapor phase epitaxy technique.