Light-receiving device, x-ray imaging device, and electronic apparatus

Abstract

A light-receiving device includes: a semiconductor substrate including a light-receiving region with light-receiving elements arranged two-dimensionally in matrix, and a peripheral region provided therearound; a first first electrically-conductive region provided at a first surface of the semiconductor substrate for each element and coupled to a first electrode, in the light-receiving region; a second first electrically-conductive region provided at the first surface and around the first first region provided for each element and coupled to a second electrode; a third first electrically-conductive region provided at the first surface and around the second first region provided for each element and having electrically floating state; a fourth first electrically-conductive region provided at the first surface and around the light-receiving region and having electrically floating state, in the peripheral region; and a first second electrically-conductive region embeddedly formed in the semiconductor substrate and facing the second, third, and fourth first regions.