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    • 60. 发明公开
    • LIGHT RECEIVING DEVICE
    • LICHTAUFNAHMEVORRICHTUNG
    • EP2806456A1
    • 2014-11-26
    • EP13768201.9
    • 2013-03-28
    • Asahi Kasei Microdevices Corporation
    • CAMARGO, Edson Gomes
    • H01L27/14H01L27/146H01L31/10
    • G01J5/0025G01B11/14G01J5/10G01S3/781G01S3/783H01L27/1446H01L31/02005H01L31/02024H01L31/022408H01L31/105
    • The present invention aims to provide a light receiving device which can calculate difference values of outputs from light receiving parts at the same time with a high S/N ratio while suppressing the number of output terminals without using switching elements. The light receiving device of the present invention includes a circuit pattern including first and second light receiving parts and first and second output terminals, which are formed on the same substrate, each of the first and second light receiving parts having a semiconductor layered part forming a photodiode structure having a first conductivity type semiconductor layer and a second conductivity type semiconductor layer, and a first electrode and a second electrode respectively connected to the first conductivity type semiconductor layer and the second conductivity type semiconductor layer, wherein the first electrodes of the first and second light receiving parts are connected to each other, the second electrode of the first light receiving part is connected to the first output terminal, the second electrode of the second light receiving part is connected to the second output terminal, and a difference between signals generated in the first light receiving part and the second light receiving part is output between the first and second output terminals.
    • 本发明的目的在于提供一种光接收装置,其可以在不使用开关元件的同时抑制输出端子的数量,同时以高S / N比同时计算光接收部分的输出的差值。 本发明的光接收装置包括形成在同一衬底上的第一和第二光接收部分和第一和第二输出端的电路图案,第一和第二光接收部分中的每一个具有半导体层叠部分, 具有第一导电类型半导体层和第二导电类型半导体层的光电二极管结构以及分别连接到第一导电类型半导体层和第二导电类型半导体层的第一电极和第二电极,其中第一和第二导电类型半导体层的第一电极 第二光接收部彼此连接,第一光接收部的第二电极连接到第一输出端,​​第二光接收部的第二电极连接到第二输出端,并且产生信号之间的差 在第一光接收部分和第二光束中 在第一和第二输出端之间输出接收部分。