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:
Jan. 02, 2018
Filed:
Oct. 22, 2014
Omnivision Technologies, Inc., Santa Clara, CA (US);
Guannho George Tsau, San Jose, CA (US);
OmniVision Technologies, Inc., Santa Clara, CA (US);
Abstract
An image sensor pixel includes a photodiode region formed in a semiconductor layer, a pinning layer and a depletion adjustment layer. The photodiode region receives visible and infrared light from a light incident side of the image sensor pixel. The pinning layer is disposed between a front surface of the semiconductor layer and the photodiode region, while the depletion adjustment layer is disposed between the pinning layer and the photodiode region. The depletion adjustment layer is configured to adjust a depletion region of the photodiode region to reduce charge carriers induced in the photodiode region by the received infrared light.