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:
Jul. 07, 2026
Filed:
Jan. 31, 2023
Applicant:
Omnivision Technologies, Inc., Santa Clara, CA (US);
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H10W 46/00 (2026.01); H10F 39/00 (2025.01); H10F 39/18 (2025.01);
U.S. Cl.
CPC ...
H10W 46/00 (2026.01); H10F 39/011 (2025.01); H10F 39/014 (2025.01); H10F 39/18 (2025.01); H10F 39/807 (2025.01); H10W 46/101 (2026.01); H10W 46/301 (2026.01); H10W 46/503 (2026.01);
Abstract
The present disclosure provides an alignment method for image sensor fabrication that involve forming a number of set of alignment marks using key process mask layers to improve alignment registration between process mask layers so as to reduce number of alignment transfer improves alignment accuracy between pixel elements. The present disclosure further provides a semiconductor device that includes such alignment mark structures.