公开(公告)号：US20180038732A1

公开(公告)日：2018-02-08

申请号：US15663247

申请日：2017-07-28

Applicant: ROHM CO., LTD.

Inventor： Gota TATEISHI ,  Norikazu OKUDA

IPC: G01J1/42 ,  G02B5/20 ,  H01L31/103 ,  H01L31/02 ,  H01L31/0216 ,  H01L31/028 ,  G01J1/44 ,  H01L31/0203

CPC classification number: G01J1/4228 ,  G01J1/44 ,  G01J3/0259 ,  G01J3/36 ,  G01J3/50 ,  G01J3/513 ,  G01J2001/444 ,  G01J2001/446 ,  G01J2003/1213 ,  G01J2003/2806 ,  G01J2003/2813 ,  G01J2003/2826 ,  G01J2003/516 ,  G02B5/201 ,  G02B5/208 ,  H01L27/14621 ,  H01L27/14645 ,  H01L31/00 ,  H01L31/02019 ,  H01L31/0203 ,  H01L31/02162 ,  H01L31/028 ,  H01L31/103

Abstract: A light detection device includes a semiconductor substrate, a signal detection light receiving portion that is formed in the semiconductor substrate, an infrared light receiving portion that is formed in the semiconductor substrate, a first color filter that covers the signal detection light receiving portion and that has a first spectral characteristic such that the first color filter passes therethrough light in a first wavelength range within the wavelength range of visible light and in the wavelength range of infrared light, a second color filter that covers the infrared light receiving portion and that has a second spectral characteristic such that the second color filter passes therethrough light in a second wavelength range within the wavelength range of visible light and in the wavelength range of infrared light, a third color filter that covers the infrared light receiving portion and that has a third spectral characteristic such that the third color filter passes therethrough light in a third wavelength range different from the second wavelength range within the wavelength range of visible light and in the wavelength range of infrared light, and an infrared cut filter that covers the signal detection light receiving portion and that has an opening in a region opposite to the infrared light receiving portion.