Patent ID: 7667224

Claim:
A semiconductor light emitting device comprising: a substrate having a top face and a rear face electrode forming portion opposed thereto, the substrate being translucent to light in a first wavelength band, the rear face electrode forming portion being surrounded by a rough surface; a semiconductor stacked structure provided on the top face of the substrate and including an active layer that emits light in the first wavelength band; a first electrode provided on the semiconductor stacked structure; a second electrode provided on the rear face electrode forming portion; a reflective film coated on at least a portion of the rough surface; and an adhesive with which the semiconductor light emitting device is mounted, wherein the rear face electrode forming portion has a smaller area than the top face, the substrate has a first side face extending generally vertically from the top face and a second side face that obliquely extends from the first side face to the rear face electrode forming portion, the rough surface is formed on the first and second side faces, the adhesive climbs up on the second side face, and the reflective film is provided on the second side face to exist after the rough surface is formed, and between the substrate and the adhesive.