公开(公告)号：US20240170522A1

公开(公告)日：2024-05-23

申请号：US18491204

申请日：2023-10-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chulsoo Choi ,  Bumsuk Kim ,  Yun Ki Lee ,  Junghun Kim ,  Jonghoon Park

IPC: H01L27/146

CPC classification number: H01L27/1463 ,  H01L27/14621 ,  H01L27/14625 ,  H01L27/14636

Abstract: An image sensor includes a substrate having a first surface and a second surface which are opposite to each other, the substrate comprising a plurality of pixel regions arranged in a first direction and a second direction which are parallel to the first surface and intersect each other, a deep device isolation pattern extending into the substrate and between the plurality of pixel regions, and a color separating lens array on the second surface of the substrate. The color separating lens array includes a spacer layer on the second surface of the substrate, and a plurality of nano-posts horizontally spaced apart from each other on the spacer layer.

公开(公告)号：US20240055455A1

公开(公告)日：2024-02-15

申请号：US18207546

申请日：2023-06-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Junghun Kim ,  Chulsoo Choi ,  Jonghoon Park ,  Yunki Lee

IPC: H01L27/146 ,  G02B3/08

CPC classification number: H01L27/14627 ,  H01L27/14685 ,  H01L27/14645 ,  G02B3/08 ,  G02B2207/101

Abstract: An image sensor is provided. The image sensor includes: a photodetector with a plurality of photodetection cells; an interlayer device provided on the photodetector; and a color separation lens layer including a plurality of nano-posts disposed on the interlayer device and spaced apart from each other, the plurality of nano-posts focusing light of different spectra to at least two of the plurality of photodetection cells. Each of the plurality of nano-posts includes a first refractive layer having a first refractive index and a cylindrical shape, and a second refractive layer having a second refractive index and surrounding bottom and side surfaces of the first refractive layer, and the second refractive index is higher than the first refractive index.