The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 17, 2023
Filed:
Oct. 22, 2020
Applicant:
Stmicroelectronics (Crolles 2) Sas, Crolles, FR;
Inventor:
Axel Crocherie, Grenoble, FR;
Assignee:
STMicroelectronics (Crolles 2) SAS, Crolles, FR;
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/146 (2006.01);
U.S. Cl.
CPC ...
H01L 27/14627 (2013.01); H01L 27/1463 (2013.01); H01L 27/14607 (2013.01); H01L 27/14685 (2013.01); H01L 27/1462 (2013.01);
Abstract
An image sensor is includes a plurality of pixels. Each of the pixels includes a silicon photoconversion region and a material that at least partially surrounds the photoconversion region. The material has a refraction index smaller than the refraction index of silicon, and the interface between the photoconversion region of the pixel and the material is configured so that at least one ray reaching the photoconversion region of the pixel undergoes a total reflection or a plurality of successive total reflections at the interface.