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:
Apr. 10, 2007
Filed:
May. 21, 2002
Kuen-hsien Lin, Ping Tung Shien, TW;
Shang-hsuan Liu, Tai-Tung, TW;
Chih-hsing Chen, Miaoli, TW;
Hung Jen Tsai, Hsin chu, TW;
Hsien-tsong Liu, Hsinchu, TW;
Kuen-Hsien Lin, Ping Tung Shien, TW;
Shang-Hsuan Liu, Tai-Tung, TW;
Chih-Hsing Chen, Miaoli, TW;
Hung Jen Tsai, Hsin chu, TW;
Hsien-Tsong Liu, Hsinchu, TW;
Taiwan Semiconductor Manufacturing Co., Ltd., Hsin-Chu, TW;
Abstract
A method and system for preventing white pixel difficulties resulting from undesired current induced in an image sensor having a photodiode and a depletion region therein. The photodiode is isolated in a pixel layout for an image sensor. A depletion region is configured, such that the depletion region is maintained in a defect-free region associated with the pixel layout for the image sensor, thereby reducing white pixel difficulties caused by induced and undesired current. The image sensor is preferably a CMOS image sensor. A depletion region of the photodiode is constantly maintained in a defect-free region during operation of the CMOS image sensor.