PHOTODETECTOR,申请号JP19970318486-传众专利搜索

PHOTODETECTOR

申请公布号：JPH11150253(A)

申请号：JP19970318486

申请日期：1997.11.19

申请公布日期：1999.06.02

申请人：

HAMAMATSU PHOTONICS KK

发明人：MAKINO KENJI;TANAKA AKIMASA

分类号：G01B11/00;G01S3/786;H01L27/14;H01L31/02;H04B10/00;H04B10/112;H04N5/335;H04N5/369

主分类号：G01B11/00

摘要：PROBLEM TO BE SOLVED: To provide a compact photodetector for constituting a light-tracking sensor without having an error caused by deviation in optical axis. SOLUTION: A photodetector 10 is constituted mainly of a semiconductor substrate 12, where a quartered photodiode is formed at the center part of a device generating surface 12a and at the same time a photodiode array is formed around the periphery and a wiring board 18 for electrically connecting the semiconductor substrate 12 to the outside. In this case, the semiconductor substrate 12 is connected electrically and mechanically to the wiring board 18 by a bump 20, so that the device generating surface 12a faces opposite to the wiring board 18. On the wiring board 18, a signal-processing circuit is constituted with a preamplifier and a signal selection circuit.