Title:
LIGHT DETECTION DEVICE AND ELECTRONIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2024/057735
Kind Code:
A1
Abstract:
The present invention provides a light detection device which is capable of suppressing optical color mixing because of the light reflected by a partition wall part between color filters. Specifically, this light detection device has a configuration that comprises: a semiconductor substrate which is provided with a plurality of photoelectric conversion parts; a color filter layer which comprises a plurality of color filters that are arranged on the light incident surface side of the semiconductor substrate, and a partition wall part that is arranged between the color filters, while being formed of a material that has a lower refractive index than the color filters; a plurality of microlenses which are arranged on the light incident surface side of the color filter layer; and a high-refractive-index structure which is arranged on the optical path of the light collected by the microlenses. In addition, the high-refractive-index structure is formed of a material that has a higher refractive index than a member which is in contact with the light incident surface of the high-refractive-index structure.
Inventors:
TAKASE HIROAKI (JP)
Application Number:
PCT/JP2023/027431
Publication Date:
March 21, 2024
Filing Date:
July 26, 2023
Export Citation:
Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORP (JP)
International Classes:
H01L27/146; G02B3/00; G02B5/20
Domestic Patent References:
| WO2022064853A1 | 2022-03-31 | |||
| WO2014141991A1 | 2014-09-18 | |||
| WO2022024550A1 | 2022-02-03 |
Foreign References:
| JP2021150325A | 2021-09-27 | |||
| JP2015076475A | 2015-04-20 | |||
| US20140239431A1 | 2014-08-28 |
Attorney, Agent or Firm:
TANAKA Hidetetsu et al. (JP)
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