Patent ID: 8465997
Filing Date: 2013-06-18
Classification: H01L

Abstract:
1. A manufacturing method of a group III nitride semiconductor, said method comprising: preparing a substrate including a buffer layer; disposing a first layer from a group III nitride semiconductor doped with an anti-surfactant by metalorganic vapor deposition (MOCVD) on a surface of the buffer layer, wherein a thickness of the first layer is equal to or less than 2 μm; disposing a second layer to abut a surface of the first layer from a group III nitride semiconductor doped with at least one of a surfactant and an anti-surfactant by the MOCVD; and controlling a crystalline quality and a surface flatness of the second layer by adjusting an amount of the at least one of the surfactant and the anti-surfactant doped during the disposing of the second layer.