Patent ID: 7091524
Filing Date: 2006-08-15
Classification: H01L

Abstract:
1. A semiconductor device comprising: a substrate; a first Group III nitride semiconductor layer fanned on the substrate; a first oxide layer formed in proximity to upper portions of defects present in the first Group III nitride semiconductor layer; and a second Group III nitride semiconductor layer including a positive layer and formed over each of the first Group III nitride semiconductor layer and the first oxide layer, wherein the first oxide layer is obtained by oxidizing a portion of the first Group III nitride semiconductor layer which is present in proximity to the upper portions of defects, a portion of the first oxide layer that is located in proximity to the defects has a thickness greater than a portion of the first oxide layer that is located on a region having no defect, and the positive layer is an active layer composing a light emitting diode or a laser diode, or a channel layer of a field effect transistor.