Title : Paper on "Charge-sweep" CIS Pixel
link : Paper on "Charge-sweep" CIS Pixel
Paper on "Charge-sweep" CIS Pixel
In a recent paper titled "Design and Characterization of a Burst Mode 20 Mfps Low Noise CMOS Image Sensor" (https://www.mdpi.com/1424-8220/23/14/6356) Xin Yue and Eric Fossum write:
This paper presents a novel ultra-high speed, high conversion-gain, low noise CMOS image sensor (CIS) based on charge-sweep transfer gates implemented in a standard 180 nm CIS process. Through the optimization of the photodiode geometry and the utilization of charge-sweep transfer gates, the proposed pixels achieve a charge transfer time of less than 10 ns without requiring any process modifications. Moreover, the gate structure significantly reduces the floating diffusion capacitance, resulting in an increased conversion gain of 183 µV/e−. This advancement enables the image sensor to achieve the lowest reported noise of 5.1 e− rms. To demonstrate the effectiveness of both optimizations, a proof-of-concept CMOS image sensor is designed, taped-out and characterized.
Thus Article Paper on "Charge-sweep" CIS Pixel
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