Optical detection device, manufacturing method of optical detection device, and electronic apparatus

Abstract

An optical detection device including a through electrode is provided. The optical detection device includes a first semiconductor layer having a photoelectric conversion region, a first surface, and a second surface that is a light entrance surface, a second semiconductor layer with a third surface and a fourth surface, a second wiring layer overlapped with the third surface, a third wiring layer overlapped with the fourth surface, a first wiring layer with one surface overlapped with the first surface and another surface overlapped with one of the second wiring layer and the third wiring layer, a first conductor that has a first width, includes a first material, and penetrates the second semiconductor layer in a thickness direction, and a second conductor that has a second width smaller than the first width, includes a second material different from the first material, and penetrates the second semiconductor layer in the thickness direction.