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:
Nov. 03, 2026
Filed:
Feb. 06, 2023
Hua Hong Semiconductor (Wuxi) Limited, Wuxi, CN;
Junwen Liu, Wuxi, CN;
HUA HONG SEMICONDUCTOR (WUXI) LIMITED, Jiangsu, CN;
Abstract
A CMOS image sensor and a method for forming the CMOS image sensor are provided. The method includes: forming a substrate structure and a photosensitive doped layer, wherein the substrate structure includes a plurality of pixel regions which are mutually discrete, and the photosensitive doped layer is disposed in a pixel region; and forming a switching device on the photosensitive doped layer. The switching device is formed on the photosensitive doped layer in a stacked manner. Therefore, an area of the pixel region can be reduced and a pixel density can be improved, and a size of the photosensitive region and a size of the reading circuit can be balanced, which is conducive to obtaining better photosensitive characteristics and switching performance.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile