Patent ID: 6734515
Filing Date: 2004-05-11
Classification: H01L,Y02E

Abstract:
A semiconductor light receiving element comprising (a) a light receiving layer comprising a GaN group semiconductor, wherein the light receiving layer is a first conductivity type layer, (b) an electrode formed on one surface of the light receiving layer as a light receiving surface in such a manner that light can enter the light receiving layer, and (c) a depletion layer formed under the electrode, which depletion layer extends to cover an area around the electrode, wherein (i) the light receiving element is a Schottky barrier type light receiving element in which light enters the depletion layer from the side the electrode is formed, (ii) the electrode formed on the light receiving surface comprises at least a Schottky electrode, and (iii) a total of boundary lines between areas of the light receiving surface covered with the Schottky electrode and exposed areas is longer than the length of the outer periphery of the light receiving surface.