Research on CMOS image sensor based on circuit model simulation

Xiaoyang Liu

doi:10.1117/12.3052277

11 December 2024 Research on CMOS image sensor based on circuit model simulation

Xiaoyang Liu

Proceedings Volume 13445, International Conference on Electronics, Electrical and Information Engineering (ICEEIE 2024); 134450L (2024) https://doi.org/10.1117/12.3052277
Event: International Conference on Electronics. Electrical and Information Engineering (ICEEIE 2024), 2024, Haikou, China

Abstract

This paper presents a detailed study of the design, simulation, and analysis of a CMOS image sensor, focusing on a 3T active pixel sensor (APS) readout circuit and a 3x3 pixel array. Utilizing SPICE simulations, this paper meticulously investigates the sensor's response to varying light intensities and assesses its performance in capturing high-resolution, low-noise images. The research introduces a novel approach for image reconstruction from voltage signals, employing Excel-based simulation to visualize the sensor's output and evaluate its effectiveness. Our findings demonstrate the 3T APS architecture's potential to deliver superior image quality, highlighting its suitability for diverse imaging applications. The analysis of the 3T active pixel circuit simulation results reveal critical insights into the circuit's phototransduction efficacy and temporal response characteristics. The simulation output of the 3x3 pixel array circuit further delineates the performance of the APS with precision, indicating a high charge transfer efficiency and effective reset mechanism. The Excel visualization provides a binary image with stark contrast, reinforcing the sensor's potential in applications requiring binary decision-making. This study contributes significantly to the field of CMOS image sensor technology, offering a scientific and practical perspective on the development of next-generation sensors for applications in consumer electronics, automotive, and medical imaging. The research provides valuable insights into the sensor's operational dynamics and performance characteristics, paving the way for future advancements in sensor technology.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Xiaoyang Liu "Research on CMOS image sensor based on circuit model simulation", Proc. SPIE 13445, International Conference on Electronics, Electrical and Information Engineering (ICEEIE 2024), 134450L (11 December 2024); https://doi.org/10.1117/12.3052277

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KEYWORDS

CMOS sensors

Device simulation

Image sensors

Photodiodes

Transistors

Design

Image processing

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