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:
Jun. 02, 2026
Filed:
Nov. 29, 2019
Applicant:
Mgi Tech Co., Ltd., Shenzhen, CN;
Inventors:
Shifeng Li, Fremont, CA (US);
Cheng Frank Zhong, Menlo Park, CA (US);
Assignee:
MGI Tech Co., Ltd., Shenzhen, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H10F 39/12 (2025.01); C12Q 1/6825 (2018.01); G01N 21/64 (2006.01); G01N 21/76 (2006.01); H10F 77/12 (2025.01); H10F 77/30 (2025.01);
U.S. Cl.
CPC ...
H10F 39/199 (2025.01); C12Q 1/6825 (2013.01); G01N 21/6428 (2013.01); G01N 21/6454 (2013.01); G01N 21/76 (2013.01); H10F 77/12 (2025.01); H10F 77/306 (2025.01); G01N 2021/6439 (2013.01);
Abstract
A photodiode () includes a semiconductor substrate () having a first surface () and a second surface (), and a light sensing junction () located adjacent to the first surface (). The second surface () is located opposite the first surface (), and the second surface () includes a concave surface covering a recessed region () in the semiconductor substrate ().