Patent ID: 9064987
Filing Date: 2015-06-23
Classification: G01J,H01L

Abstract:
1. An ultraviolet sensor comprising: a p-type semiconductor layer containing, as its main constituent, a solid solution of NiO and ZnO; an n-type semiconductor layer containing ZnO as its main constituent, the n-type semiconductor layer joined to the p-type semiconductor layer such that a portion of the p-type semiconductor layer is exposed at a surface of the ultraviolet sensor; an internal electrode buried in the p-type semiconductor layer and opposed to the n-type semiconductor layer such that first and second ends of the internal electrode are exposed at opposed end surfaces of the p-type semiconductor layer; a resistance layer composed of an insulating material covering the first end of the internal electrode; a first external electrode electrically connected to the second end of the internal electrode; and a second external electrode electrically connected to the n-type semiconductor layer.