公开(公告)号：US20240105746A1

公开(公告)日：2024-03-28

申请号：US18368372

申请日：2023-09-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jongmin JEON ,  Hajin LIM ,  Keewon KIM ,  Kijoong YOON ,  Taeksoo JEON ,  Jsesung Hur

IPC: H01L27/146 ,  G02B5/04

CPC classification number: H01L27/14625 ,  G02B5/04 ,  H01L27/14685

Abstract: An image sensor includes a light detector disposed on a substrate and including a plurality of light sensing cells, an interlayer device disposed on the light detector and configured to transmit a light, and a nano prism including a first nano post and a second nano post spaced apart from each other on the interlayer device and configured to condense a light onto the light detector, the first nano post includes a first refractive layer doped with aluminum at a first doping concentration, and a second refractive layer surrounding a bottom surface and a side surface of the first refractive layer and doped with aluminum at a second doping concentration, and the first doping concentration is higher than the second doping concentration.