公开(公告)号：US20220375986A1

公开(公告)日：2022-11-24

申请号：US17738364

申请日：2022-05-06

Applicant: Apple Inc.

Inventor： Gershon Rosenblum ,  Erin F. Hanelt ,  Xiangli Li

IPC: H01L27/146

Abstract: An image sensor pixel includes a photodiode, a lens positioned in a light-receiving path of the photodiode, and an anti-reflective coating disposed between the photodiode and the lens and including four layers. The four layers include alternating layers of a higher refractive index material and a lower refractive index material. The higher refractive index material has a refractive index that is higher than the lower refractive index material.

公开(公告)号：US12094986B1

公开(公告)日：2024-09-17

申请号：US17412097

申请日：2021-08-25

Applicant: Apple Inc.

Inventor： Sungkwon Hong ,  Erin F. Hanelt

IPC: H01L31/02 ,  H01L31/0216 ,  H01L31/0232 ,  H01L27/146

CPC classification number: H01L31/0232 ,  H01L31/02164 ,  H01L27/14603 ,  H01L27/1462 ,  H01L27/14627 ,  H01L27/14643

Abstract: Various optical detector pixel embodiments are described. One optical detector pixel includes a photodiode having a first end opposite a second end, a set of lateral walls joining the first end and the second end, and a depth parallel to the set of lateral walls. A lens is positioned to direct light toward the first end of the photodiode. A set of one or more optical scattering structures laterally extends at least partially into an illumination area defined by the lens and has a set of sidewalls extending away from the first end. The set of sidewalls includes a pair of sidewalls forming an included angle. The included angle extends perpendicular to the depth of the photodiode. The pair of sidewalls abut a portion of the photodiode.