Patent ID: 7365368

Claim:
A surface-emitting type wafer comprising a substrate and a plurality of surface-emitting type elements formed above the substrate, wherein each of the surface-emitting type elements includes a light emitting element section, first and second electrodes for driving the light emitting element section, and a rectification element section, the rectification element section is connected in parallel between the first and second electrodes, and has a rectification action in a reverse direction with respect to the light emitting element section, the plurality of surface-emitting type elements are connected in series in a direction in which forward directions of the respective light emitting element sections coincide with one another, the light emitting element section includes, above the substrate, a first semiconductor section of a first conductivity type, a second semiconductor section that functions as an active layer, and a third semiconductor section of a second conductivity type, which are arranged from a side of the substrate, and the rectification element section includes, above the substrate, a first supporting section consisting of an identical composition of the first semiconductor section, a second supporting section consisting of an identical composition of the second semiconductor section, a fourth semiconductor section, and a fifth semiconductor section, which are arranged from the side of the substrate.