Invention Grant
- Patent Title: Image sensor with reduced blooming
- Patent Title (中): 具有减少开花的图像传感器
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Application No.: US13785070Application Date: 2013-03-05
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Publication No.: US09041837B2Publication Date: 2015-05-26
- Inventor: Xiangli Li
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Brownstein Hyatt Farber Schreck, LLP
- Main IPC: H04N5/359
- IPC: H04N5/359 ; H04N5/335 ; H01L27/146

Abstract:
An image sensor for an electronic device. The image sensor includes a first light sensitive element for collecting charge and having a first saturation value and a well surrounding at least a portion of the first light sensitive element and having a first doping concentration. The image sensor further includes a bridge region defined in the well and in communication with the first light sensitive element and having a second doping concentration and a blooming node in communication with the bridge region and a voltage source. The second doping concentration is less than the first doping concentration and when light sensitive element collects sufficient charge to reach the first saturation value, additional charge received by the light sensitive element travels to the blooming node via the bridge region.
Public/Granted literature
- US20140253768A1 IMAGE SENSOR WITH REDUCED BLOOMING Public/Granted day:2014-09-11
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