Patent ID: 7825008

Claim:
A method of fabricating a light emitting device to obtain square-shaped light emitting device chips, the method comprising: dicing a light emitting device wafer along a dicing line inclined at an angle of 21° to 24°, both ends inclusive, away from a dicing line angle reference direction defined as the <110> direction on the (100) surface, to thereby obtain the square-shaped light emitting device chips, the light emitting device wafer having a light emitting layer section composed of a compound semiconductor having a composition expressed by formula (Al x Ga 1-x ) y In 1-y P (where, 0≦x≦1, 0≦y≦1), the compound semiconductor capable of lattice matching with GaAs, and the light emitting device wafer having a (100) surface on a main surface thereof; and a device substrate portion stacked on the light emitting layer section and having a crystal orientation aligned with that of the light emitting layer section, and the device substrate portion composed of a III-V compound semiconductor.